In humans, widow's peak (A) is dominant over a continuous hairline (a), and short fingers (B) are dominant over long fingers (b). Two individuals with widow's peak and short fingers have a child with continuous hairline and long fingers. Determine the genotypes of the parents.

Answers

Answer 1

Answer:

Both parents are heterozygous for the traits and exhibit the dominant phenotype → AaBb

Explanation:

Available data:

widow's peak (A) is dominant over a continuous hairline (a)short fingers (B) are dominant over long fingers (b)Cross:  Two individuals with widow's peak and short fingersF1) a child with continuous hairline and long fingers

Genotypes                        Phenotypes

AA and Aa             individuals with widow's peakaa                           individuals with no widow's peakBB and Bb             shorted-fingered individualsbb                           longed-fingered individuals

Cross:

Parentals) A-B-   x   A-B-

Note: the - symbol represents either a dominant or recessive allele.

F1)  child with continuous hairline and long fingers → aabb

Each parent provided one allele for each trait to the child. So the child inherited one recessive allele a and one recessive allele b from EACH parent. The fact that both parents could provide one recessive allele to the child for each character, indicates that both parents are heterozygous for the trait. It is the only way of having a child who expresses the double recessive trait.

Parentals genotypes → AaBb    x    AaBbChild →   aabb

Related Questions

"Reduce, reuse, recycle' has long been the mantra of the Environmental Protection Agency in educating communities
on saving money, energy, and natural resources. Your tab group has been tasked with educating your school on how to
reuse materials so that there is less waste What pieces of information should you include in your presentation?
Choose ALL that apply

Answers

Answer:

All of them

Explanation:

Answer:

B, C, D

Explanation:

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Answers

Answer:

I think it is hawk.....................

Answer: The answer is Snake

Explanation: Hope this help :D



Which of these statements is most likely correct about Location A and Location B?
Location A and Location B will be equally cold because they are on the same
latitude.
Location B will have cooler summers and warmer winters than Location A.
Location A and Location B will be equally warm because they are on the same
latitude.
Location A will have cooler summers and warmer winters than Location B.

Answers

Answer:

Location A will have cooler summers and warmer winters than Location B

Explanation:

This is because costal areas are cooler in the summer and warmer in the winter than inland areas along the same latitude

jill made the table below during her research on aquatic zones and living organisms. Based on jills observations, which conclusion can you draw? (ik the answer i just need the explanation)

Answers

Answer:

B. There are no producers in the benthic zone that relay on photosynthesis.

Explanation:

There are no producers present in the benthic zone because benthic zone is located in higher depth where there is no sunlight so no photosynthesis occurs there. We know that photosynthesis only occurs in the presence of sunlight, if there is no sunlight then there is no photosynthesis occurs and as a result no producer can survive there so we can conclude that there is no producers present in the benthic zone .

For centuries, scientists believed that light waves traveled through a substance called "aether." Which of the following facts refutes this belief?

A.
Light waves can propagate through a vacuum.
B.
Aether has never been observed.
C.
Light waves can have many different wavelengths and frequencies.
D.
Light waves can travel extremely long distances.

Answers

bAnswer:

Explanation:

Scientists recently discovered a species of bacteria that’s capable of photosynthesis, but it’s anaerobic and doesn’t produce or use oxygen for respiration. Which process will be absent in this organism?
A.
Calvin cycle
B.
electron transport system
C.
glycolysis
D.
Krebs cycle

Answers

Explanation:

The answer is D. Krebs cycle. the Krebs cycle only occurs when oxygen is present, and so it would seem to be the same for the electron transport system... although, in anaerobic bacteria, it is still used as a respiratory electron transport chain called physolmere.

Answer:

Krebs cycle

Explanation:

Carbon has an atomic number of 6. Which of the following does the atomic number 6 tell you about carbon?

Answers

Carbon 6 has six protons and six neutrons. Carbon 14 has 6 protons and eight neutrons in it's nucleus

Answer:

The atomic number only tells you how many protons an element has, regardless of the amount of neutrons etc.

Carbon 6 therefore has 6 protons, and that's the only thing you can deduce from its atomic number.

can I get a summary about A Day in the Life as a pediatrician?

Answers

Answer:

shearch it on You tube....you will sure find something

Introducing substances into the air that may be harmful to living organisms or the environment is called
A) photolysis
B) eutrophication
C) air pollution
D) the chimney effect
E) entropy

Answers

i believe the answer is C) Air Pollution

What made the 1918 flu virus so deadly?

Answers

Explanation:

The virus  killed people directly by causing massive hemorrhages and edema in the lungs. Modern analysis has shown the virus to be particularly deadly because it triggers a cytokine storm (overreaction of the body's immune system

Answer:

it killed people directly by causing massive hemorrhages and edema in the lungs. Modern analysis has shown the virus to be particularly deadly because it triggers a cytokine storm overreaction of the body's immune system.

Explanation:

I hope this helped :)

Which of the following is not a function of a vertebrate’s endoskeleton?

a.) Increase speed of digestion
b.) Protect major organs
c.) Offer support and structure
d.) Connect with muscles to create movement

Answers

the answer would be C.

Increase speed of digestion is not a function of a vertebrate’s endoskeleton. So, the correct option is (A).

What is Endoskeleton?

The rigid part which provides internal support of the structure is called endoskeleton which develops from endoderm and is called a living structure. Some examples of endoskeleton are cartilage, bone etc. The hard part that is on the outside of the body that protects the soft tissues and muscles is called the exoskeleton.

Vertebrates are animals that have a backbone and an endoskeleton which is a skeleton inside their body while invertebrates are animals that do not have a backbone. Invertebrates may have a skeleton on the outside of their body called an exoskeleton, while some invertebrates have no skeleton at all.

It protects major organs, offer support to the structure, connect the muscles to create movement.

Thus, Increase speed of digestion is not a function of a vertebrate’s endoskeleton. So, the correct option is (A).

Learn more about Endoskeleton, here:

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How much energy consumed is lost to waste?​

Answers

Answer: To begin with, it shows that more than half (58%) of the total energy produced in the US is wasted due to inefficiencies, such as waste heat from power plants, vehicles, and light bulbs. In other words, the US has an energy efficiency of 42%.

Explanation:

Answer off internet

Please give brainliest

True or False? When populations of the same species are isolated from each other, they are more likely to become two separate species.

Answers

i believe it is true
If haves to be true

larry cant do math he sucks

Answers

daamnnn that's tuffff

i can help larry im reslly good st ig

The use of which of the following is not an agricultural practice that benefits soil microorganisms?
a.
crop rotation
b.
monoculture
c.
companion planting
d.
cover crops

Answers

Answer:

The answer is (b). monoculture

Answer:

b.

monoculture

Explanation:


4 Why will alcohol keep on boiling even after the flame was turned down?

Answers

Check the slides okay the teacher told us to read it

The alcohol keep on boiling even after the flame was turned down, Alcohol has a lower boiling point than water.

What do you understand by the term boiling point?

The boiling point is the temperature at which the substance passes from a liquid to a gaseous state.

Thus, Alcohol has a lower boiling point than water.

To learn more about  boiling point  click here:

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Atoms are the most basic unit of matter. Two or more atoms from the same or different elements can combine to form molecules.
Cells are the most basic unit of life. Cells are made up of many different types of molecules. Which of the following accurately shows higher levels of organization within organisms, from least complex to most complex?
A. cells → organs → organ systems → tissues → organism
B. cells → tissues → organs → organ systems → organism
C. cells → organ systems → organs → tissues → organism
D. cells → organs → tissues → organ systems → organism

Answers

Answer:

B

Explanation:

Because cells make tissues which then combine to make organs which then further combine to form system

Which makes organisms like me and you

Answer: B

(An atom is the smallest unit of matter that retains all of the chemical properties of an element. Atoms combine to form molecules, which then interact to form solids, gases, or liquids. For example, water is composed of hydrogen and oxygen atoms that have combined to form water molecules.)

Explanation : Because cells make tissues which then combine to make organs which then further combine to form system

Variation in genotype is caused by
O None of the above
e phenotypes changing more quickly than genotypes.
o recombination of genes as a result of sexual reproduction.
O
O mutations only.

Answers

Answer:

Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms. Finally, genetic variation can be a result of sexual reproduction, which leads to the creation of new combinations of genes.

Fill in the blank...

Question: Matter____ ecosystems.

Options:
A. flows out
B. is found only in
C. stays in the same parts of
D. cycles around​

Answers

The answer is D. it cycles around


Which of the following is a way in which the atmosphere does NOT
interact with the hydrosphere? *
A). Decreasing the salinity of oceans from increased temperatures causing glacial
melting.
B). Developing hurricanes over warm ocean currents.
C).Increasing the amount of water evaporation from oceans and global temperatures
rise.
D). Gases moving sediment from hill tops

Answers

The correct answer is d. Please give me brainlest let me know if it’s correct or not okay thanks bye

After fertilization, the successful development of a mature, full-term fetus depends on A. The release of human chorionic gonadotropin (hCG) by the developing placenta AND the production of estrogen and progesterone by the placental tissues B. the release of human chorionic gonadotropin (hCG) by the developing placenta C. maintenance of the corpus luteum for all 9 months D. all of these E. the production of estrogen and progesterone by the placental tissues

Answers

Answer:

The correct option is A (The release of human chorionic gonadotropin (hCG) by the developing placenta AND the production of estrogen and progesterone by the placental tissues).

Explanation:

The developing placenta release Human chorionic gonadotropin (hCG) during pregnancy. What this hormone does is tell the body (corpus luteum) to produce progesterone to maintain the pregnancy. The presence of Human chorionic gonadotropin is a sign of pregnancy, meaning successful fertilization had happened, and implantation of the embryo had occurred too, preventing another cycle of menstruation.

The successful development of a mature, full-term fetus also depends on estrogen which during pregnancy aids the formation of blood vessels and also aids fetal maturation. While progesterone is a hormone when released during pregnancy helps maintain a healthy pregnancy.

how does an increase in volume affect the gas pressure in a balloon

Answers

Answer:

Boyle's Law explains the relationship between volume and pressure. According to Boyle's Law, the volume of a fixed amount of gas decreases as its pressure increases. If the volume increases, its pressure decreases.

Question 4
Generally, the more a food has been altered from its original form, the less healthy it
is.
A.) True
B.) False

Answers

False ig lolllllllllllll

hello please help i’ll give brainliest

Answers

Answer:

B or the second answer

Explanation:

Answer: I think It is B

Explanation:

Which statement correctly shows the flow of energy in a food chain?

A.
Producer→ heterotroph → decomposer

B.
Producer ← consumer ← decomposer

C.
Autotroph← decomposer ← consumer

D.
Autotroph→ decomposer→ heterotroph

Answers

Answer:

Producer→ heterotroph → decomposer

Explanation:

How does the release of carbon dioxide by microorganisms benefit plant life?
a.
It reduces the acidity of water in soil, which increases water absorption and provides plants with necessary water.
b.
It increases the acidity of water in soil leading to the breakdown of rocks in soil. This releases nutrients which can be used by plants.
c.
It decreases the acidity of water in soil leading to the breakdown of rocks in soil. This releases nutrients which an be used by plants.
d.
It increases the acidity of water in soil, which decreases water absorption providing plant life with firmer soil for root growth.

Answers

Answer:

b.

It increases the acidity of water in soil leading to the breakdown of rocks in soil. This releases nutrients which can be used by plants.

Explanation:

When microorganisms release carbon dioxide into the soil, the acidity of water surrounding soil particles is increased. This increase in acidity allows for rock present in soil to be broken down, releasing minerals into the soil. These minerals are then available for use by plant life.

Answer:

The answer is B!!!!

Explanation:

I just took the test <3

Would a cell lyse be hypertonic

Answers

No a cell lyse would be hypertonic.

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Answers

Answer:

Obtain Oxygen

Explanation:

i think............

anyways have good day :D

Answer:

pretty sure you have the answer by now so thanks for the Points

Explanation:

Explanation:

8 amino acide are coded by _______ amino acids?

Answers

Answer:

Explanation:

nutrients i think im not sure sorry sweetheart

Did you know Brainly is polish?!

"Brainly is a *Polish* education technology company based in Kraków, Poland, with headquarters in New York City. It provides a peer-to-peer learning platform for students, parents, and teachers to ask and answer homework questions. The platform has elements of gamification in the form of motivational points and ranks"

Answers

It's is very hard you wanna learn it
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