The Punnett square is used to make predictions about the genotype and phenotype of a future generation according to the alleles involved in the cross. 25% HH, 50% Hh, 25% hh.
What is a Punnett square?The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
Let us assume that in the exposed example both parents are heter0zyg0us for the trait.
The feature is coded by a single diallelic gene in which H is the dominante allele and h the recessive allele.
Cross:
Parentals) Hh x Hh
Gametes) H h H h
Punnett square) H h
H HH Hh
h Hh hh
F1) Genotype
- 1/4 = 25% of the progeny is expeted to be h0m0zyg0us dominant, HH
- 2/4 = 1/2 = 50% of the progeny is expected to be heter0zyg0us, Hh
- 1/4 = 25% of the progeny is expeted to be h0m0zyg0us recessive, hh
Phenotype
- 3/4 = 75% of the progeny is expected to express the dominant trait
- 1/4 = 25% of the progeny is expected to express the recessive trait
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Palliative radiation treatment may: Group of answer choices remove the tumor. divide the tumor. shrink the tumor. enlarge the tumor.
Explanation:
Radiotherapy to relieve symptoms is also known as palliative radiotherapy. Palliative radiotherapy aims to shrink cancer, slow down its growth or control symptoms. It doesn't aim to cure cancer.
Mining has only short-term effects on the Earth.
Please select the best answer from the choices provided
OT
OF
Mining having only short-term effects on the Earth is False.
What is Mining?This is defined as the extraction of different types of mineral in the form of ore etc from the earth.
This damages the soil structure and have long term effects such as the area being prone to erosion etc.
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The following statements about the light reactions of photosynthesis are all true except: Question 3 options: Chlorophyll (and other pigments) absorb light energy, which excites electrons. Electrons are transferred from water to NADP . RUBP carboxylase catalyses absorbtion of photons. ATP is generated by photophosphorylation. The splitting of water molecules provides a source of electrons.
The wrong statement is : ( C ) RUBP carboxylase catalyses absorption of photons
Light reaction of photosynthesisThe light reaction of photosynthesis is a stage in photosynthesis which is light dependent.
During the light reactions of photosynthesis, the green plant chlorophyll absorbs light energy, and the absorbed energy makes the electrons to get excited ,also electorns are transferred from water to NADP⁺ also ATP is generated by photophosphorylation.
But the RUBP carboxylase catalyses absorption of photons does not occur in the light reaction of photosynthesis.
Hence we can conclude that the wrong statement is : ( C ) RUBP carboxylase catalyses absorption of photons
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The corpse flower uses ______ putrid fragrance to attract pollinators, and ______ typically only in bloom once every six years.
The corpse flower uses putrid fragrance to attract pollinators, and typically only in bloom once every six years is a true statement.
What is Corpse flower?
This is the type of flower which has a stinking smell which attracts pollinators such as flies to them.
This flower blooms once in every six to nine years thereby making it the most appropriate choice.
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If a DNA molecule is “unzipped” and one strand has the code T-A-A-G-G-C, what is the code of the other strand?
Please answer quickly
Answer:
part 1 the answer is c
part2 the answer is B
During the process of translation what happens immediately after the ribosomal subunits bind to the mrna strand
The human body depends on food to build and maintain.
where is Ground tissue is found in plants
Match each form of energy with its description.
kinetic energy
thermal energy
gravitational potential energy
radiant energy
electrical energy
lightning produced during a storm
a piece of fruit hanging from a tree
radio waves transmitted from a tower
sand on the beach feels warm
to the touch
a box moving along a conveyor belt
Answer:
KINETIC ENERGY: A BOX MOVING ALONG.......
ELECTRICAL....: LIGHTNING PRODUCED ....
GRAVITATIONAL..... A PIECE OF FRUIT HANGING.....
RADIANT.... RADIO WAVES TRANSMITTED....
THERMAL... SAND ON BEACH FEELS....
Which hormone does the sympathetic nervous system release to increase heart rate.
The sympathetic nervous system releases hormones known as catecholamines which increase the heart rate.
What is a heart rate?it is the number of contractions of the heart per minute.
What are catecholamines?These are the neurotransmitters that have a catechol and a side chain that is an amine.
Which catecholamines are released by the sympathetic nervous system?Epinephrine and norepinephrine are the catecholamines that are released by the sympathetic nervous system to increase the heart rate.
Where are these hormones released?These hormones are released in the blood.
How does this hormone increase the heart rate?"These hormones are released at the neuromuscular junction of the cardiac nerves.""They shorten the repolarization period."This speeds up the rate of depolarization and contraction and thus the heart rate is increased.To learn more about sympathetic nervous system, hormones and heart rate here,
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The ______ is a bony structure which has _______________ running through the center.
Answer:
Central canal
Explanation:
running through the osteon
central canal or haversian canal,contains blood vessels,nerves and lymphatic vessels.
Edward Jenner's smallpox inoculation experiment was based on his observation that some dairymaids who worked
with cows had suffered lesions on their hands, but that these dairymaids were immune to the more severe smallpox.
Which best explains why the dairymaids were immune to smallpox?
They did not interact with many people so they were not exposed to the pathogen.
They frequently washed their hands so they were able to wash away the pathogen.
They were exposed to cowpox, and the substance their body produced to fight cowpox also attacked smallpox.
O They breathed the air around the cows that carried an antipathogen in it that destroyed the pathogen.
From anecdotes he heard, Edward Jenner came up with the premise and conclusion that dairy maids could not get small pox because they had previously been exposed to the virus.
What was conclusion of Edward jenner in case of small pox?He also came to the conclusion that small pox may be passed from one person to the next. Edward Jenner came to this conclusion based on stories he had heard about dairy maids being immune to smallpox.
In 1736, Edward Jenner met Sarah Nelms, a young dairy girl with small pox lesions. Edward Jenner then vaccinated an 8-year-old kid named James Phipps with material from Nelms' small pox lesion. James Phipps suffered a fever and became unwell, but he recovered completely after ten days.
Jenner infected the same boy with materials from a fresh small pox lesion a month later. There was no sickness in the boy.
When Edward Jenner was inoculated/vaccinated with matter from a small pox lesion, he came to the conclusion that he could acquire total protection from small pox.
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Answer:
He asked what would happen if he inoculated a person with cowpox fluid and then later with smallpox fluid.
Explanation:
The chemical energy of coal and gas is being used up and cannot be renewed.
TRUE OR FALSE
Answer:
True
Explanation:
Coal and gas are examples of non-renewable resources. Renewable resources are sources of energy that can be replenished to replace the portion of the resource that was already used. Examples of renewable resources include wind energy, solar energy, wood, hydropower, etc. There are finite coal and gas on Earth, so they are not renewable.
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Name the structure that increases the surface area of the small intestine in humans.
The name of the structure that increases the surface area of the small intestine in humans is Villi.
What are the functions of the small intestine?The small intestine performs a key role in the digestion of undigested food which comes through the stomach. It also absorbs all the essential minerals and nutrients from the food and is used by the body.
Villi or microvilli is the structure that increases the surface area of the small intestine for food absorption and adding digestive secretions.
Therefore, the name of the structure that increases the surface area of the small intestine in humans is Villi.
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FQ: What tissues make up the arteries, veins, and the capillaries of the human body?
something like tunica intima/ interna and tunica media
Why does habitat fragmentation change ecosystems?
Select all that apply.
A. Edge species benefit and may be different than interior species.
Edge species benefit and may be different than interior species.
B. Larger animals may not have large enough areas to hunt or breed.
Larger animals may not have large enough areas to hunt or breed.
C. Interior species benefit and reproduce faster than edge species.
Interior species benefit and reproduce faster than edge species.
D. The amount of edges that the ecosystem has increases.
The amount of edges that the ecosystem has increases.
Answer:
c.
Explanation:
C. Interior species benefit and reproduce faster than edge species.
Interior species benefit and reproduce faster than edge species.
what specialized structures does crayfish have that make it well suited to its environment
Answer:
Specialized mandibles. Simplistic crustacean larva that is more developed once leaving the egg. Two main body segments: the cephalothorax and the abdomen. One large carapace.
Explanation:
hope it will help you
Please explain why the wind curves as it moves from high pressure to low pressure and if it causes
any larger wind patterns. Please answer in 3 to 5 sentences using good grammar
Answer:
Circulating air is diverted due to the Earth's rotation. Instead of flowing in a straight line, air in the Northern Hemisphere deflects to the right, whereas in the Southern Hemisphere it deflects to the left, resulting in curved trajectories. The Coriolis effect is the name for this deflection.
Explanation:
_________ is a filamentous, gliding, thermophilic bacterium that often is isolated from neutral to alkaline hot springs, where it grows in the form of orange-reddish mats, usually in association with cyanobacteria
Answer:
chloroflexus
Explanation:
Genus Chloroflexusis a filamentous, gliding, a thermophilic bacterium that often is isolated from neutral to alkaline hot springs, where it grows in the form of orange-reddish mats, usually in association with cyanobacteria.
What is Chloroflexusis?Chloroflexus aurantiacus is a facultative aerobic bacterium. It is of orange-reddish color. They can withstand (73–60 °C). They are phototrophic bacteria.
Thermophilic organisms are those which can withstand high temperatures in areas. These are mostly bacteria and fungi. They are considered the oldest organisms on the earth.
Thus, Genus Chloroflexus is a thermophilic, filamentous, gliding bacterium that is frequently isolated from hot springs that range in pH from neutral to alkaline. It typically coexists with cyanobacteria to produce orange-reddish mats.
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Describe how catalase activity changes as pH decreases
Answer:
the enzyme becomes denaturated and loses its structure
Explanation:
Why do scientist use scientific names to refer to organisms
a: common names are too complicated for scientist to remember
b:similar organisms in different areas sometimes have the same common name
c:using scientific names ensures that non-scientists do not have access to useful information about organisms
d: the scientific name tells the reader what domain the organism belongs to
Explanation:
Similar organisms sometimes in different areas have diffetent common names.
(a hundred points what more do u want bro)
Puppies increase in size as their cells grow and divide. Almost all cells complete a full cell cycle that includes interphase and cell division. In interphase, cells serve their specialized functions, grow, and copy their genetic material. Mitosis is the first stage of cell division, in which the copied chromosomes are separated into two new nuclei. Then in cytokinesis the cell divides into two daughter cells. If no mutations or errors occur, the genetic material in each daughter cell is identical to what was in the original cell.
Now that you have completed this lesson, you should be able to:
describe the stages of the cell cycle
use a model to illustrate the role of cellular division in the formation of new cells
describe the structure of a chromosome
follow chromosomes through the processes of mitosis and cytokinesis
If you do not feel comfortable with these topics, go back and review the lesson before attempting your assignment.
Now it is time to complete the assessment for this lesson. Contact your instructor if you have questions or need additional help.
Answer:
Ummmm... Indeed?..
Explanation:
Which of the following is a good way to analyze data?
A. Check over it and then copy it.
B. Try to find some way to make it support your hypothesis.
C. Organize it into charts, graphs, do calculation if necessary.
D. Put it away for a few months to see if it makes more since later.
Usually the body needs to excrete excess acid. sometimes, however, the body is in alkalosis. in the collecting duct, there are special cells (type b intercalated cells) whose sole job is to deal with alkalosis. what would you expect these cells to do
The type b intercalated cells will reduce the amount of bicarbonate ion secreted and the amount of hydrogen ions excreted by the body in order to deal with alkalosis.
What is alkalosis?Alkalosis is a condition in which excess alkali is present in the blood.
Alkalosis occurs when the body exceeds excess alkali in from the body.
Therefore, the type b intercalated cells will reduce the amount of bicarbonate ions secreted and the amount of hydrogen ions excreted by the body in order to deal with alkalosis.
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The process whereby cells begin to specialize, at about the eight-cell stage, is called: Please choose the correct answer from the following choices, and then select the submit answer button.
The process by which cells begin to specialize, at approximately the eight-cell stage, is called morula.
What happens in the morula stage?At this point, the embryo as a whole maintains the same size, that is, the newly formed daughter cells are smaller than the cell of origin. In the morula stage, the embryo differentiates into two cell groups located in the outer layer and the intern embryo.
Morula is the name given to the fourth stage of cell segmentation after fertilization of the egg.
With this information, we can conclude that the process by which cells begin to specialize, at approximately the eight-cell stage, is called morula.
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Many living organisms are adapted to specific temperatures. This is an example of which characteristic of life?
*
a. use of energy
b. reproductive ability
c. growth and development
d. maintaining homeostasis
Answer:
d
Explanation:
The adaptation by which organisms adapt to specific temperature is called homeostasis, which helps an organism to maintain a stable equilibrium towards natural factors.
Answer:
Is 'D' number
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Use the mitosis and meiosis interactive to help you identify the images as a cell in metaphase of mitosis, meiosis I, or meiosis II. All cells come from an organism that has a diploid (2n) chromosome number of eight.
In this case, the images are not found here but a cell in meiosis has undergone a reduction in the genetic material.
What is meiosis?Meiosis is a reductional type of cell division where chromosome number is reduced to half (haploid number n: 4).
In this case, meiosis will produce four cells having 4 chromosomes each (2n: 8 chromosomes in mitosis).
In conclusion, the images are not found here but a cell in meiosis has undergone a reduction in the genetic material.
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Which organisms would be classified as consumers in this web?
A. hawks, rabbits, grasses
B. grasses, grasshoppers, birds
C. birds, flowers, mice
D. grasshoppers, snakes, hawks
(it’s science)
Which of the following is a product of the reactions that take place in a chloroplast?
Answer:
In these reactions, the energy from ATP and NADPH is used to fix carbon dioxide (CO2). The products of this reaction are sugar molecules and various other organic molecules necessary for cell function and metabolism.Explanation:
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