Nearsightedness is dominant to normal vision and hazel eyes are dominant to blue eyes. A nearsighted woman with hazel eyes who is heterozygous for both traitsmarries a man with normal vision and hazel eyes. His genotype for eye color is the same as his wife's. Their three children all have blue eyes and normal vision. What is the probability that their next child will have blue eyes and be nearsighted

Answers

Answer 1

In this case we will deal with genetics and use the genes to know the probability of the child being born with blue eyes, in this case it will be 1/4.

What is genetic probability?

Probability serves to mathematically estimate the possibility of events that happen by chance, that is, as a matter of luck. It can be defined by the following formula:

P is the probability that an event will occurA is the number of desired eventsS is the total number of possible events.

In this case,

the gemetes from the mother will be NH, Nh, nH and nhthe gametes from the father will be nH and nh

Based on the parent genotypes a child with nearsight and blue eyes will have the genotype Nnhh. This will be:

1/2 x 1/2 = 1/4

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Related Questions

The incidence of cystic fibrosis, a recessive genetic disorder in the Caucasian population of United States, is 1 in every 2,500 individuals. Find the number of heterozygous carriers.
(p + q = 1, p2 + 2pq + q2 = 1)

A.
0.0392
B.
0.0254
C.
0.045

Answers

Answer:

Explanation:
Answer: A, 0.0392

The incidence of cystic fibrosis, a recessive genetic disorder in the Caucasian population of United States, is 1 in every 2,500 individuals. Find the number of heterozygous carriers.

(p + q = 1, p2 + 2pq + q2 = 1)

A: 0.0392

GIVING BRAINIEST TO WHOEVER GIVES THE RIGHT ANSWER!

A purple flower with a genotype PP is crossed with a white flower that has a genotype of pp. What would
the phenotype(s) of the offspring be?

Answers

Answer:

It Should Be D

Explanation:

Because if you put it in a diagram like in the picture dulow you will see all of the have 1 big P and one small p

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4. The cells of all organisms undergo similar processes to maintain homeostasis. What must ALL cells do in order to maintain homeostasis

Answers

ALL cells do in order to maintain homeostasis by allows the organism in its combat to keep homeostasis.

Whst is Homeostasis ?

Homeostasis is generally maintained withinside the human frame with the aid of using an incredibly complicated balancing act. Regardless of the variable being saved inside its regular range, preserving homeostasis calls for as a minimum 4 interacting components: stimulus, sensor, manage center, and effector.

Homeostasis relies upon on preserving accurate fluid stages in the cell and on changing useable materials, along with oxygen, for waste products, along with carbon dioxide.

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Some organisms have genes that improve their ability to survive

Answers

Some organisms have genes that improve their ability to survive and reproduce. If the gene also help their offspring survive and reproduce, then frequency in gene in population get increase.

What is gene?

A gene is the basic physical and functional unit of heredity. Genes are made up of DNA and each chromosome contains many genes.

Throughout the individual lives, their genomes interact with their environments to cause variations in traits which help an organism to adapt better to the environment. These changes which help the organism's survival are selected and passed on to next generation.  The genes help in increasing the fitness of the organism and thus the gene frequency changes.  . The frequency of these gene increases as they are selected favourably.

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What happens during telophase?

Answers

Answer:

During telophase, the chromosomes arrive at the cell poles, the mitotic spindle disassembles, and the vesicles that contain fragments of the original nuclear membrane assemble around the two sets of chromosomes. Phosphatases then dephosphorylate the lamins at each end of the cell.

Explanation:

A nucleolus forms in each side. A new nuclear membrane forms around each new set of chromosomes, each with the same number of chromosomes as the original cell.

In 2012, two scientists were awarded the Nobel prize for their research on stem cells.
They showed that adult cells could be reprogrammed to become cells with the properties of embryonic stem cells.
Describe the possible benefits of this research.

Answers

Answer:

Researchers John B. Gurdon and Shinya Yamanaka have been awarded this year's Nobel Prize in Physiology or Medicine for work that has revolutionised cell biology. The Nobel Prize committee awarded the prize, "for the discovery that mature cells can be reprogrammed to become pluripotent".

Draw the organic product in each of the reactions. Include formal charges, if applicable. Omit any inorganic byproducts or ions

Answers

The organic product in each of the reactions is sodium azide.

What is the chemical reaction?

One or greater materials that react collectively to shape a product is known as a chemical reaction. Most chemical reactions take vicinity with the assistance of reagents. Reagents are materials that might be used to convert one shape of a substance to another.

The reactions go through substitution and discount reactions to attain the very last natural product. Sodium azide (NaN) and sodium cyanide (NaCN) are proper nucleophiles. When it reacts with an alkyl bromide, it undergoes a substitution reaction.

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Compare the use of RFLP to PCR in the study of DNA. What is one difference between these two methods?
A. RFLP is one of the newest methods used; PCR is one of the oldest.
B. RFLP is considered by scientists to be more useful than PCR.
C. RFLP is better to use with samples that have mold on them than PCR.
D. RFLP requires larger samples of DNA than PCR requires.

Answers

The one difference between RFLP and PCR is that RFLP requires larger samples of DNA than PCR requires.

What is RFLP and PCR?

Restriction fragment length polymorphisms, or RFLPs, are differences among individuals in the lengths of DNA fragments cut by enzymes.

Polymerase chain reaction, or PCR is a technique in molecular biology for creating multiple copies of DNA from a sample.

These two techniques are used in the study of DNA, however, one difference between RFLP and PCR is that RFLP requires larger samples of DNA than PCR requires.

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Which claim is most likely to be based on pseudoscience A. The arrangement of the stars can bring you good luck B. The color of light from a star can tell you how old it is C. The planets in our solar system move around the sun D. The volume of gas will increase if you heat the gas

Answers

The arrangement of the stars can bring you good luck is most likely to be based on pseudoscience.

What is Pseudoscience?

These are statements which seem factual but has no relationship with scientific methods.

Option A was chosen because there is no scientific proof that stars bring luck gto individuals.

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People with albinism have a defect in tyrosinase, an oxidase that helps to control skin pigment production. In what epidermal layer is tyrosinase active

Answers

Stratum basale is the epidermal layer in which the enzyme tyrosinase is active.

What is Albinism?

This is an inherited disorder which is characterized by insufficient melanin production in the body.

The enzyme known as tyrosinase facilitates melanin production in the epidermal layer known as Stratum basale.

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Polar bears are adapted to stay warm by growing thick fur. These organisms most likely live in a

Answers

Cold environment like the North Pole

Answer:

they live in a polar region.

Explanation:

it is very cold and

in the winter temperatures can drop below to about −58 degrees F

in the summer  temperatures can be about  32 degrees F

and the polar bears have thick coat of fur which under the fur a a thick layer of fat Fur even grows on the bottom of their feet which helps that to grip on ice.

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Which question is most likely to be found in a dichotomous key for fish identification?

Where was the fish found?

Does the fish live in the water?

How closely related is it to a salmon?

Does it have a rounded tail?

Answers

Answer:

D

Does it have a rounded tail?

The carrying capacity is the maximum number of individual organisms that ____.

Answers

The carrying capacity is the maximum number of individual organisms that a specific environment can support.

An environment can only support a limited number of people.Carrying capacity refers to the maximum population size that an ecosystem can support without depleting the natural resources available at a time. Carrying capacity is determined by limiting variables like non-living(abiotic) factors and living(biotic) factors.The number of creatures that may live in an environment is determined by the availability of abiotic (eg. water, oxygen, and natural habitat) and biotic (eg. food, decomposers like fungi) elements. Generally in an ecosystem, a species' population will rise until it achieves its carrying capacity. The population size then stays fairly constant to check over the sustainable development.Sustainable development is defined as development that meets current needs without impacting future generations' ability to meet their requirements.Resources may be fully exhausted if the population exceeds the carrying capacity for an extended length of time. Natural disasters(flood, drought, volcanic eruption etc.) and  Anthropogenic activities(human interventions) also have the potential to reduce or raise carrying capacity.

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HELP ASAP PLS
Which of the following factors most accurately distinguishes reproducibility from repeatability?

the entity performing the experiment
the location in which the experiment is performed
the statistical significance required of the experiment
the sample size of the experiment

Answers

The factor that most accurately distinguishes reproducibility from repeatability is the entity performing the experiment (Option A).

What is reproducibility ?

Reproducibility is a feature that indicates if an experiment can be imitated in all its variables.

Moreover, repeatability refers to the intrinsic characteristics of the person who takes measurements during experimentation.

In conclusion, the factor that most accurately distinguishes reproducibility from repeatability is the entity performing the experiment.

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2. describe three situations in which ionic reactions go to completion.

Answers

The  three situations in which ionic reactions go to completion is formation of a gas,  a precipitate and a slightly ionized product.

What are ionic reactions?

It indicates the flow of electrons and, therefore, the bonds broken and formed in the course of the reaction. It is theoretical, it can be corroborated by experiments, but sometimes there is no consensus on the mechanism by which a certain reaction occurs.

Chemical reactions are the result of the transformation that occurs in substances, where atoms rearrange themselves, modifying their initial state. Thus, chemical compounds undergo changes generating new molecules. In turn, the atoms of the elements remain unchanged.

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How is observation used by science

Answers

Answer:

in science Observation is essential in science. Scientists use observation to

collect and record data, which enables them to construct and

then test hypotheses and theories . Scientists observe in many

ways – with their own senses or with tools such as microscopes,

scanners or transmitters to extend their vision or hearing

The part of earth that contains all life all ecosystems including land water and air/atmosphere

Answers

Answer:

The biosphere is made up of the parts of Earth where life exists—all ecosystems. The biosphere extends from the deepest root systems of trees, to the dark environments of ocean trenches, to lush rain forests, high mountaintops, and transition zones like this one, where ocean and terrestrial ecosystems meet.

Explanation:

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What is the role of gravity in our solar system?
Choose 1 answer:
Earth's gravity causes the sun and the other planets to revolve around it.
The sun's gravity causes Earth and the other planets to revolve around it.
Our solar system's gravity causes other star systems in the galaxy to revolve around it.

Answers

The suns gravity causes earth and other planets to revolve around it.

Surface runoff is increased by (4 points)
ice
wind
deforestation
terrace building

Answers

Surface runoff is increased by deforestation. Details about surface runoff can be found below.

What is surface runoff?

Surface runoff is the overland flow of excess water (with or without accumulated contaminants) that cannot be absorbed by the ground as infiltration.

Surface runoff has adverse effects on the soil and crops.

Deforestation exposes the bare soil, hence, is likely to cause surface runoff.

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What is the largest species of sea turtle in the world?.

Answers

Answer:

The leatherback is the largest living sea turtle.

Explanation:

The Leatherback is the largest sea turtle existing today, which can reach up to 2000 pounds in weight and 8 feet in size. These turtles belong to a reptilian family that has been around for more than 100 million years.

best place to plant corn, cotton ,wheat and soy beans 50 points

Answers

Answer:

cool, temperate regions like the midwestern United States and southern Canada

Cool temperature places like southern Canada

The extraction of DNA is a common procedure in biotechnology research laboratories. Research the methods of extracting DNA in biotechnology facilities. Describe how the extraction methods used in this lesson compare to those of research laboratories.

Answers

The DNA extraction employed in research laboratories  are more advanced than those in the lesson since high quality DNA is required in research laboratories.

What are DNA extraction methods?

DNA extraction methods are the methods employed in the extraction of DNA from living cells.

Some DNA extraction methods include:

Phenol-chloroform isoamyl alcohol,Proteinase K,CTAB method,Spin column-based methods, andMagnetic bead-based technique

The different DNA extraction methods employed depends on the type of sample and the purity and quality of DNA required.

Therefore, the DNA extraction employed in research laboratories  are more advanced than those in the lesson since high quality DNA is required in research laboratories.

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An insect with coloration to avoid being detected by a predator would be an example of.

Answers

An insect with coloration to prevent from being detected by a predator would be an example of Camouflage.

What is the importance of Camouflage?

Camouflage, commonly characterized as cryptic coloring, is a defensive tactic used by organisms to obscure their appearance, generally in order to blend in with their environment.

Camouflage is utilized by organisms to hide their location, identity, and movement. This enables prey to evade predators while also allowing predators to sneak up on victims.

An insect with coloration to avoid being detected by a predator would be an example of Camouflage.

Thus, the correct answer is Camouflage.

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Which of these is a process during which the hydrosphere interacts with the exosphere? (4 points)
Absorption of rainwater by soil
Absorption of heat in lakes and oceans
Condensation of water vapor into water
Solidification of water into ice

Answers

The process during which hydrosphere interacts with the exosphere is during the condensation of water vapor into water.

Hydrosphere and Exosphere

hydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air while exosphere is the outermost layer of Earth's atmosphere which is the upper limit of the atmosphere and extends from the exobase, which is located at the top of the thermosphere.

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How is the skin part of the integumentary system and the excretory system?
(Hint: Think of what happens when your body gets very hot.)

Answers

The skin shields the body from external conditions and aids in the regulation of the body's internal functions as part of the integumentary system.

What is integumentary system?

The integumentary system is a collection of organs that make up the body's outermost covering. It is made up of the skin and its appendages, and it serves to protect and preserve the animal's body by functioning as a physical barrier between the exterior and interior environments.

The excretory system's skin, on the other hand, acts as a regulator for the amount of fluids and salt in our bodies.

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state one way 2 molecules could differ that would explain the difference between their ability to pass through the artificial plant cell membrane

Answers

There are multiple facts that can justify that two molecules shows difference in their ability to pass through a membrane:

- Size and molecular weight
- Receptors on the membrane and the molecules
- Structure of the membrane
- Membrane affinity

Different molecules have different solubility depending upon the type of molecule and membrane.

Mueller-Hinton agar plates are poured to a uniform thickness of 4mm. Zone size interpretive criteria are based on Mueller-Hinton plates of this thickness. If a plate had been poured that was 7 mm thick, how would this affect the size of the zones of inhibitio

Answers

If a 7mm thick plate had been poured, this would affect the size of the inhibition zones, because the inhibition area would be smaller as a greater thickness would require more drugs in the same area.

What is Diffusion Disk?

It is one of the simplest, most reliable and most used susceptibility methods in microbiology laboratories. Its basic principle is the diffusion of the antimicrobial on the surface of the agar, from a disk impregnated with the same antimicrobial.

With this information, we can conclude that if a 7mm thick plate had been poured, this would affect the size of the inhibition zones, because the inhibition area would be smaller as a greater thickness would require more drugs in the same area.

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Please help me - fill in the blank

a) Blood that leaves the air sacs is rich in the gas ________________. b) When breathing out, the breathe is rich in _______________ _______________. c) If you trace the path of air moving through the respiratory system ,it would enter through the mouth and ________________. It continues through the _________________, into the __________________, through the _______________ tubes and finally reach the ___________ ______________.

Answers

In this question, we will understand the air path from entering the nasal passages to reaching the alveoli, where gas exchange takes place.

What is the air's path to the lungs?

The air penetrates through the nasal passages, passes through the pharynx, larynx and trachea, bronchi, reaching the lungs where it travels through the bronchioles until reaching the alveoli, where gas exchange takes place. The difference between inspired and expired air is in the concentration of oxygen and carbon dioxide.

a) Blood leaving the air sacs is rich in oxygen gas.

b) When exhaling, the breath is rich in carbon dioxide.

c) If you trace the path of air moving through the respiratory system, it would enter through the mouth and nose. It continues through the pharynx, into the larynx, through the tubes and into the trachea and finally reaches the lungs.

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[BWS.03]Scientific laws are
O non observable phenomenon
O not applicable in all situations
O descriptions of specific relationships
O explanations offered of specific relationships

Answers

Answer:

scientific laws are descriptions of specific relationships under given conditions in the natural world

Genetic engineering is also known as

Answers

Answer:

Genetic Modification

It is also known as modification!
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