Biology College

Night blindness (n) is a sex-linked recessive trait. A woman who is night blind marries a man who is not night blind. What are the genotypes of both individuals?​

Answers

Answer 1

Answer:

Genotype of night blind woman -  XnXn

Genotype of normal man - XY

Explanation:

Given

Night blindness (n) is a sex-linked recessive trait. Let us say it is X linked recessive

In this case a man with XY genotype having a diseased X allele will be night blind while a woman will have night blindness if both the X allele are diseased  . In case if only one X allele is diseased in women then, she will be a carrier of night blindness defect

Genotype of night blind woman -  XnXn

Genotype of normal man - XY

Related Questions

A woman with type A blood is claiming that a man with type AB blood is the father of her child, who is type B.
Can this man be the father of her child?
O A No
O B. Cannot be determined
0 C Yes



SAMMAAA PLZZZZ

Answers

Answer:

ITS CCCCCCCCCCCCC CCCCCCC

Answer:

Yes

Explanation:

Because he is AB so if his child is B he would take that dna from him but it could go either way

Anoles are a family of IIzards found throughout the Americas. Green anoles, Anolis carolinensis, are native to i specific area of Florida. In this
area, the primary territory of green anoles was once along the ground and in low-level branches. However, the Introduction of brown anoles,
Anolis sagrei, from Cuba forced green anoles to shift o their territory to the tops of trees. The branches at the treetops are smoother and thinner
than those close to the ground. Over time, the toe pads of the green anoles have become larger and stickler.
What is the best explanation for the change In green anoles' toe pads?
Some individuals In the green anole population had mutations that helped them survive and reproduce In the new conditions,
so thelr genes were passed on to the next generation.
O B. Gene flow between the green and brown anoles provided the green anoles with traits that helped them survive and
reproduce, and those tralts were passed on to the next generation.
The feet of the green anoles became larger and stickler as they used them, which helped the green anoles to better survive,
reproduce, and pass the tralt on to the next generation.
O D. The change in conditions caused mutations In green anoles that gave them beneficial tralts for survival and reproduction, and
those mutations were passed on to the next generation.
Reset
Next
dmentum. All rights reserved.
ED INTL

Answers

Answer: D

Explanation:

Answer:

Some individuals in the green anole population had mutations that helped them survive and reproduce in the new conditions, so their genes were passed on to the next generation.

Explanation:

True or False?

The cuticle scales of the hair
always point toward the follicle

Answers

Answer:

The cuticle is a transparent outer layer of the hair shaft. It is made of scales that overlap one another and protect the inner layers of the hair (Figure 3-4). The scales point from the proximal end of the hair, which is closest to the scalp, to the distal end, which is far- thest from the scalp

Explanation:


What is an example of biotechnology? What example from the Gene Editing article explains how biotechnology can be used for carbohydrates, lipids, and proteins?

Answers

Answer:

Synthetic insulin and synthetic growth hormone and diagnostic tests to detect various diseases are just some examples of biotechnology

Example of Gene Editing is Dalmatians, which often carry a genetic mutation that makes them prone to suffer from bladder stones.

?

Explanation:

HAVE A GOOD DAY

6. Poison Ivy is also known as Rhus toxicodendron. Its species identifier is:
Rhus
poison
toxicondendron
ivy

Answers

Answer:

ivy

Explanation:

Answer:

Poison Ivy is also known as Rhus toxicodendron. Its species identifier is:

Rhus

poison

toxicondendron

ivy

Explanation:

PLEASE HELP!! Only one of the following statements is true: Identify the true statement and explain why it is true.

a. Two organisms can be of different phylums but the same kingdom.
b. Two organisms can be of different kingdoms but the same phylum.

Answers

true Different rhythms same kingdoms

1 pts
Question 9
Which of these is an example of biomass energy?
O A coal-burning generator.
O A gasoline-burning automobile.
O A wood-burning stove.
O An automobile that operates on fuel cells.

Answers

a wood burning stove

Give 2 exampes of Density Independent factors that can kill off organisms.

Answers

Answer:

Factors include: food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size. All species populations in the same ecosystem will be similarly affected, regardless of population size. Factors include: weather, climate and natural disasters.

Explanation:

PLS HELP ME ILL GIVE BRAINLIEST ​

Answers

Answer:

Because of the animals present there.

Explanation: Birds and Turtles lay eggs with shells therefore the shells are more likely to be found in their landscape

Plz help me well mark brainliest if you are correct!

Answers

i think it’s a because that’s the easy question every

Answer:

Its A. satellite :)

Explanation:

Can anyone help me with my homework

Answers

Answer:

Explanation:

1. True

2. True

3. False

4. False

5. False

Can you help, please?

Answers

Answer:

D

Explanation:

Which type of mining is likely the least harmful to the environment?

Answers

Answer:

Placer mining can be less damaging to the environment than surface mines, as the sediment is returned to the water after the minerals have been extracted.

Explanation:

1: Can The environment determines all physical features on plants?
2: Can The environment can affect physical features on plants?
No links!!!

Answers

Answer: When said that he was the one

Explanation: the first sentence is the nice loot

Help me! Thanks 15 points. URGENT

Answers

Answer:

DDddddddddddddddddddddd


Outline the effect of the following mutations:
TAG-> TAT
TAC-> TCC

Answers

Answer:

TAG-> TAT >> sense mutation  

TAC-> TCC >> missense mutation

Explanation:

A sense mutation is a type of mutation that changes a stop codon into a sense codon, thus producing an elongated protein. The TAG codon (UAG in the RNA) is a stop codon, while TAT (UAU) encodes for tyrosine, thereby TAG-> TAT is a sense mutation. On the other hand, a missense mutation is a type of point mutation where a single nucleotide change generates a new codon which encodes a different amino acid. In this case, the TAC codon (UAC) encodes for tyrosine, while TCC (UCC) codon encodes for serine, and therefore TAC-> TCC is a missense mutation (Tyr to Ser mutation).

Pyramids depicting the number of organisms or biomass may be inverted, upright, or even diamond-shaped.
Energy pyramids, however, are always upright. Why?

Answers

Answer:

The correct answer is - as energy lost at every trophic level.

Explanation:

In any ecological ecosystem the energy pyramids always upright unlike other pyramids such as biomass showing the number of organisms, that can be diamond shape, inverted or upright.

The main reason behind this is due to the fact that it is only a pyramid in the ecosystem that always unidirectional in the food chain which is always some energy lost with an increase in the trophic level in the food chain. This loss of energy always gets back to the atmosphere in each step of the food chain.

As the energy is lost at every trophic level, the energy pyramids are always upright. A further explanation is below.

In whatsoever biological environment, the energy pyramid always seems to be straight, unlike some of the other pyramidal, including such biomass, which might be diamond-shaped, overturned, as well as upstanding.Essentially the food chain is simply a pyramid, and there is always some power loss as that of the primary consumers throughout the chain increases.

Thus the response above is right.

Learn more:

https://brainly.com/question/13010665

As the Earth's climate continues to get warmer, air quality is expected to get worse (e.g., ozone level and particulate matter).
Group of answer choices

True

False

Answers

The answer is True hope this helps

The from farmland is often contaminated with pesticides, herbicides,
fertilizers, and oils used in farm equipment.
O A. ammonia buildup
B. runoff
C. acid rain
O D. livestock
SUBMIT

Answers

Answer:

The answer to your question is B. Runoff

Explanation:

Answer:

B. Runoff.

Explanation:

Got it right!

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

Answer:

the answer is a

Explanation:

its a physical reaction due to the change in apperance

It’s A
I hope it’s help

Plz help asap 1 and 2 plz

Answers

Answer:

1- Ans:Molecules

2- Ans:Atoms

When energy is transferred to or from a substance, it can change the molecules’ freedom of movement. True or False?

Answers

Answer:

True

Explanation:

When transfer energy, the substance's temperature changes which can change the molecules' freedom. For example, when water freezes the water molecules loose temperature and slow down, unlike in a gas where molecules are free and energetic.

What would happen to a vascular plant if there were not structures to move the materials throughout the plant?

Answers

Vascular tissues of plant are xylem and phloem. If xylem will be damaged then plant will not be able to transport water from soil through roots to leaves. If phloem will be damaged then nutrients produced during photosynthesis will not be able to reach each and every part of the plant body.

a.
lose their leaves seasonally
b.
trees keep their leaves, whether broadleaf or needleleaf, year-round
a. angiosperm b. cryptosperm
O a. angiosperm b. gymnosperm
O a. gymnosperm b. angiosperm
a. cryptosperm b. chynosperm

Answers

Answer:

Should be B

Explanation:

Sorry for the previous wrong answer, I'm pretty sure it's B because I took the test and it said B

According to the question option, "B" trees keep their leaves, whether broadleaf or needle leaf, year-round a. angiosperm b. cryptosperm is correct.

What is the difference between angiosperms and gymnosperms?

Gymnosperm seeds are configured as cones.

Thus, the correct option is "B".

To learn more about angiosperms click here:

https://brainly.com/question/12939745

PLEASE HELP WILL MARK BRAINLEST!!!

Answers

Answer:

c i had that before its c

Explanation:

What might be limiting resource for sharks in their ecosystem

Answers

Answer:

Sharks keep ocean ecosystems in balance

Sharks limit the abundance of their prey, which then affects the prey of those animals, and so on throughout the food web. Because sharks directly or indirectly affect all levels of the food web, they help to maintain structure in healthy ocean ecosystems. HOPE THIS HELPS!!!!!!!!

Explanation:

please I need help! will give brainlist


1. What types of geological events or changes occur at divergent plate boundaries?

2. What types of geological events or changes occur at convergent plate boundaries?

3. What types of geological events or changes occur at transform plate boundaries?​

Answers

Answer:

1. Seafloor spreading, Volcanoes, earthquakes, and ocean formation.

2. Island chains, mountains, earthquakes, and volcanoes.

3. Earthquakes, faults, and volcanoes.

Explanation:

Genetic mutations can occur during meiosis and be passed on to the next generation. What is a benefit of this process?

Answers

Answer:

The benefit of this is let's say theoretically you're mom got small pox at age 10 and gave birth to you at age 35 her DNA was built up to withstand small pox if she gets it again. If a small amount of her DNA is in you then chances are she passed that immunity to you and you have mutation for the better.

Answer: Genetic variation is increased.

Explanation: Just took the test and it was right.

Need help asap explain how scientists can use spectra to determine substances on another planet is what it says at the bottom

Answers

You can use spectra to determine substances on another planet is what it says at the bottom. This explains how scientists can use spectra to determine.

what does Ecosystem mean ? ​

Answers

Answer:

ecosystem: all the living and nonliving things interacting in a particular area  

Explanation:

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