O daltonismo é um distúrbio moderado ligado ao cromossomo X que se caracteriza pela cegueira para as cores verde e vermelha. Considerando-se o cruzamento de uma muher carreadora do alelo para o daltonismo ao se casar com um homem de visão normal, cuais as chances de as filhas desse casal serem carreadoras é de ?
Answers
Answer:
50%
Explanation:
Olá. Primeiramente é necessário informar que perguntas em português devem ser postadas no campo "world Languagens". Isso porque esse não é o servidor basileiro e sim o servidor americano. Caso contrario, a sua pergunta pode nunca ser respondida e até mesmo excluida do site.
Em segundo lugar, para que seja possivel que você repsonda a essa pergunta você precisará preencher um Quadrado de Punnett, como mostra a figura abaixo.
Como você sabe, as mulheres possuem os cromossomos XX e os homens XY. Como a mulher apresentada na pergunta acima possui o alelo para o daltonismo, mas não apresenta daltonismo, podemos considerar que apenas um dos cromossomos dela possuem esse alelo. O alelo para o daltonismo é recessivo, sendo assim, podemos considerar que essa mulher possui os alelos XDXd. Homem com quem essa mulher se casa, não possui daltonismo, logo os alelos dele são XDY, como mostrado na figura.
Ao preencher o quadrado de Punnett, você verá que existe a possibilidade desse casal possuir duas filhas, uma delas pode possuir os alelos XDXd, igual a mãe e, portanto, ser carreadora do alelo para o daltonismo.
Sendo existe uma chance, em duas filhas desse casal ter uma filha carreadora de daltonismo. Isso é igual a 1/2, que resulta em 0,5, ou 50% de chances de ter uma filha carreadora de daltonismo.
Related Questions
The hypothesis that whales evolved from land-dwelling ancestors is supported by __________. ANSWER Unselected molecular comparisons of whales and fish Unselected historical accounts of walking whales Unselected the ability of captive whales to be trained to walk Unselected fossils of extinct whales that had increasingly reduced hind limbs Unselected evidence from the current biogeographic distribution of whales Unselected I DON'T KNOW YET
Answers
Answer:
The answer is "Third choice".
Explanation:
Fossils are a great source of evidence about whales' forebears. It demonstrates, for instance, that a land mammal lived 50 million to 700 years ago. Whales evolved from such marine residents were thought by scientists. Scientists. This and more cells from a fossil can be said, so the concept that whales evolved from ancestors of land is reinforced by an extinct whale which has shortened the hind limbs evermore.
Give 2 advantages that mammals have over reptiles. Explain.
Answers
Answer:
warm-bloodedness is the main one
Explanation:
Answer:
1) Being warm-blooded gives mammals a distinct advantage in habitats
2) Mammals are important members of food chains and food webs, as grazers and predators.
3) Mammals meet people's needs by serving as pets, transport, food, or research subjects.
4) Mammals also interact with other species in many symbiotic relationships.
Which part of the neuron below is indicated by the arrow, and what is its function?
The long section of a neuron that includes structures that wrap around the neuron are indicated by the arrow.
- The myelin sheath releases neurotransmitters so that electrical impulses can be transferred.
- The myelin sheath protects and transmits electrical impulses faster.
- The node of Ranvier transmits electrical impulses faster.
- The node of Ranvier transfers information across a gap.
Answers
Answer:
the arrow points to an axon
Explanation:
Each neuron in your brain has one long cable that snakes away from the main part of the cell. This cable, several times thinner than a human hair, is called an axon, and it is where electrical impulses from the neuron travel away to be received by other neurons.
Answer:
B: The myelin sheath protects and transmits electrical impulses faster.
Explanation:
i just took the test and its B
Which three statements are true about the energy flow in an ecosystem?
Answers
Answer:
main source of energy for an ecosystem is the sun producers convert radiant energy to chemical energy the maximum amount of biomass is at the lowest trophic level
Answer:
A,B and E
Explanation: hope it helps you :)
which of the samples shown below are photosynthetic
Answers
Option B. Samples ACD Are photosynthetic
What does it mean to be photosyntheticTo be photosynthetic means to possess the ability to carry out photosynthesis, a vital process in which organisms, typically plants, algae, and some bacteria, use sunlight, carbon dioxide, and water to synthesize organic compounds, particularly glucose, and release oxygen as a byproduct.
Photosynthesis occurs in specialized cell structures called chloroplasts, which contain chlorophyll and other pigments that capture light energy. These pigments absorb light, primarily in the visible spectrum, and convert it into chemical energy through a series of biochemical reactions.
Read more on photosynthesis here:https://brainly.com/question/13763348
#SPJ1
1: Which two parts of the taxa do we use to name organisms?
2: List and describe each of the three Domains.
3 List and describe the four kingdoms in the Eukarya Domain.
Answers
99% of the GMOs on the planet are ____
or ____
Answers
Answer:
The answer would be pesticide producers and herbicide resisters.
Explanation:
Hope this helped!
Molecules on the outer surface of a microorganism act as____
Answers
Sorry if I spelt that wrong
The immunostimulants act as those molecules that are found on the outer surface of the microforms.
What are microsorgams ?The microorganisms are those organisms that can only be seen through the microscope and include the bacteria, the protozoa, the algae, and the fungi.
The virus is not considerd to be living and has a single cell or may form a colony of cells. The unseen microbial life is scripted in the 6th century BC. As these microorganisms have a single-celled life they are more diverse.
The presence of the immunostimulants on the body of the micro organs tells about the outer surface of these microorganisms.
Find out more information about the microorganism.
brainly.com/question/8695285
Describe movement of molecules to maintain a healthy cell environment. Explain in details
Answers
Answer:
Very necessary for its survival.
Explanation:
Movement of molecules is very important to maintain a healthy cell environment because some molecules are required by the cell for its growth and development. Some molecules moves inside the cell environment through a semi-permeable membrane such as glucose, oxygen, potassium etc while on the other hand, some molecules are removed from the cell which are waste materials such as carbondioxide etc. If these waste materials are not removed from the cell, it greatly damaged the cell.
help plsssssss will give brainliest
Answers
Answer:
C
Explanation:
Common sense
PLEASE HELP! WILL MARK BRANLIEST! The amount of carbon today is the exact amount that has always been on Earth. T or F
Answers
Answer:
True
Explanation:
I dont know if this is correct but I looked it up I hope this helps! Have a great day!
This article is about carbon and how it moves around our planet. Carbon is the fourth most abundant element in the universe and the basic building block for all life. Carbon atoms are everywhere – the stone we walk on, the CO2 our bodies produce and release into the air, the backbone of polymers, and most importantly, carbon is the foundation of all life.
The total amount of carbon on the earth is essentially constant. Imagine a log of wood inside of a large sealed metal box filled with air. Weigh the entire box and its contents. Now cut the log up until it is just a pile of sawdust. Weigh the box again – it has the same weight. Now burn the sawdust inside until all that is left is a pile of ash inside a smoke filled box. Weigh the box again. The weight is the same as before.
Check this one:
https://andrewbellay.com/carbon-cycle/
Mark Brainliest please
A muscle cramp is a sudden, painful contraction of a muscle, during which movement is difficult. What is happening at the cellular level during a muscle cramp?
Answers
Answer:
Myosin and actin do not fully detach, so the muscle cannot relax.
What is the genotype of an organism?
A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.
B. How the genes are expressed resulting in the physical appearance of the organism.
Answers
Answer:A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.
Explanation:
A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.
For each group write the # of valence electrons
Answers
Answer:
Explanation:
Bascially just count starting from 1 (skip the transition metals) and put helium at 2 valence. Everything else is just a regular pattern.
Which of the following best describes the function of the human nervous system?
Answers
Answer:
The nervous system gathers, interprets, and responds to information about the body's internal and external environment.
Which algebraic property could be used to rewrite 3x ⋅ (7y ⋅ 4) as (3x ⋅ 7y) ⋅ 4?
Associative Property of Addition
Associative Property of Multiplication
Commutative Property of Addition
Commutative Property of Multiplication
Answers
Answer:
Associative property of Addition
Explanation:
In an algebra to form an equation we add
Answer:
Associative property of Addition
Explanation:
In an algebra to form an equation we add
The ozone destroying pollutants primarily comes from air conditioner coolants, refrigerator coolant, aerosol spray, and plastic foam. *
true
false
Answers
Answer:
true
Explanation:
Chlorofluorocarbons or CFCs are the main cause of ozone layer depletion. These are released by solvents, spray aerosols, refrigerators, air-conditioners, etc. The molecules of chlorofluorocarbons in the stratosphere are broken down by the ultraviolet radiations and release chlorine atoms.
All of the species of sugar maple trees (Acer saccharum) found in the [town] make up a:
1. population
2. community
3. ecosystem
4. biome
Answers
Answer:biome
Explanation:
Because biome means where they are from
Answer:
C
I think it's correct unless any objections
Adrenergic receptors Select one: a. can be activated by the release of epinephrine. b. have two structural forms - muscarinic and nicotinic. c. when activated stimulate skeletal muscles to contract. d. can be found in both the sympathetic and parasympathetic divisions. e. are activated by the release of acetylcholine.
Answers
Answer:
The correct answer is a. can be activated by the release of epinephrine.
Explanation:
Epinephrine is a hormone and neurotransmitter naturally secreted by the body through the adrenal glands, synthesized and stored in the adrenal medulla and released into the systemic circulation. Epinephrine is a non-selective adrenergic agonist, stimulating alpha1-, alpha2, beta1, and beta2-adrenergic receptors. The systemic actions of catecholamines are mediated by the binding of these compounds to plasma membrane receptors, of the GPCR type widely distributed throughout the body and known as adrenergic receptors, which are activated by the catecholamines adrenaline (epinephrine) and noradrenaline . These receptors cause different effects depending on the G protein subtypes to which they are associated and the signal transduction mechanism linked to the specific G protein.
Early in mitosis, the nucleus, nucleolus, and nuclear envelope begin to dissolve in preparation for cell division. In
which stage of the cell cycle is this process reversed?
Answers
Answer:
Telophase
Explanation:
During telophase, a nuclear envelope becomes apparent around the nucleolus of each sister chromatid, forming their nucleus before separation/cytokinesis.
If this helped you, I'd appreciate Brainliest <3 TYwhat is the all year round climate present in the philipines
Answers
The average year-round temperature measured from all the weather stations in the Philippines, except Baguio, is 26.6 °C (79.9 °F). Cooler days are usually felt in the month of January with temperature averaging at 25.5 °C (77.9 °F) and the warmest days, in the month of May with a mean of 28.3 °C (82.9 °F).
What does biodiversity mean?
O
same organisms at each level
different organisms at all levels
O differences within one species
similarities within one species
Answers
Answer:
Biodiversity is a kind of variation of animals, or plant species within a given habitat
Explanation:
How did the drought most likely affect populations of grasshoppers living in the grassland ecosystems? Choose the correct answer.
A. The insects adapted to eat other available foods instead of grass.
B. Populations increased because other insects were eliminated from the environment. C. Populations decreased because the resources the grasshoppers needed were not available.
D. Populations of grasshoppers were not affected because the size of a population cannot change over time.
I need help
Answers
Answer:c
Explanation:
A sample of human tissue has just been delivered to your evidence room for a crime scene
What type of tissue is this?
Please help will mark BRAINLIEST and make sure to explain!!
Answers
Most likely though, it’s epithelial tissue.
Crossing-over takes place between...
A. sister chromatids
B. analogous chromosomes
C. homologous chromosomes
Answers
Answer:
C. homologous chromosomes
Explanation:
Crossing over occurs between prophase I and metaphase I and is the process where two homologous non-sister chromatids pair up with each other and exchange different segments of genetic material to form two recombinant chromosome sister chromatids.
Answer:
C. homologous chromosomes
Explanation:
Crossing-over takes place between homologous chromosomes.
What can you infer from this graph?
Answers
Answer: you can infer that I don’t give a uriruru
B. The graph is an example of a density-independent limiting factor
C. The population of P. caudatum decreases while the population of
P. Aurelia increases when they are grown together
D. The graph shows that an increase in population of the protist P. aurelia
causes a decrease in the population of P. caudatum when they are
grown
together.
Scientists recently discovered that three different types of squid, a marine animal, previously thought to be three different species, were actually all members of one species. Their earlier ideas were based on using squid carcasses (dead bodies). The new, more accepted classification is most probably based on an analysis of
A. a greater number of squid carcasses
B. the feeding habits of the three different species
C. a number of newly found squid fossils
D. the DNA present in the cells of squid
Answers
Answer:
D: The DNA present in the cells of the squid.
5. What process happens when rocks break down due to reaction with water,
carbon dioxide, oxygen and organic acids?
A. Biological Engineering
B. Chemical Engineering
C. Electrical Engineering
D. Mechanical Engineering
If your score is
sted by the ever
4- 5 Very good! You may still read the module but you are already
knowledgeable with the topics that we are to discuss.
2-3 Good! Go over the items that you find difficult and then you may proceed
to the lessons in this module that you don't understand. .
to
Answers
Answer:
Chemical engineering
Explanation: I am not really that good at science but my opinion is that it is chemical engineering because the process of the rock breaking down with the listed factors of water, carbon dioxide etc. If you are not sure you can also look of the definition for each of the engineering factors...
How human health is affected by contaminated food
Answers
Answer:
Foodborne pathogens can cause severe diarrhoea or debilitating infections including meningitis. Chemical contamination can lead to acute poisoning or long-term diseases, such as cancer. Foodborne diseases may lead to long-lasting disability and death
Explanation:
i hope it will help you
Cellular respiration definition ?
Answers
Answer:
cellular Respiration is that cells use oxygen in mitochondria to make ATP and GTP for cells
Answer:
Cellular respiration occurs when cells utilize oxygen in their mitochondria to produce ATP and GTP.
Cellular respiration is a series of reactions that occur under aerobic conditions and result in the production of large amounts of ATP.
Explanation:
Glucose, the basic building block for starch and many sugars are one of the main sources of energy in our diet. Its oxidation can be divided into three phases in the respiration of the cells: glycolysis, the cancer cycle, and the electron transport system.
Aerobic breathing uses eukaryotes to generate energy, including all multicellular organisms and some single-cell organisms. Aerobic breathing uses oxygen – a powerful, in-kind electron acceptor.
Aerobic breathing is an extraordinarily effective process that enables eukaryotes to have complicated life and active lifestyles. It also means however that they need a continuous supply of oxygen or that they cannot get the energy to stay alive.
Other forms of respiration, which are slightly less efficient, can be used by procharian organizations such as bacteria and archaebacteria. They can therefore live in environments in which eukaryotic organisms cannot live because they do not need oxygen.