1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
guajiro [1.7K]
4 years ago
8

A student claims that if the animal producing the spermatozoa has a mutation in a mitochondrial gene, the probability that any o

ffspring will inherit the mutation is zero. Provide evidence to support claim.
Biology
1 answer:
aalyn [17]4 years ago
3 0

Answer:

Mitochondrial DNA is inherited from the maternal side

Explanation:

Mitochondrial DNA is inherited from the maternal side (from the oocyte). The mitochondria from the sperm cell including their DNA are degrade after fertilisation.

The size of the cells that make the zygote also contribute to this. The oocyte is much larger than the sperm, containing around 100,000 mitochondria, whereas the much smaller sperm cell only contains around 100. This means even initially, there are very few paternal mitochondria compared to maternal mitochondria in the first place, effectively diluting them out.

This, coupled with the degradation of the sperm mitochondria, means that offspring will not inherit mitochondrial DNA and any mutations from their father.

You might be interested in
The table lists the observations students made about four specimens under a microscope. Based on these observations, what specim
olchik [2.2K]

Answer:

Animal ; prokaryote ; plant ; virus

Explanation:

Animal:  An animal cell possesses cell membrane, ribosomes, lysosomes and nuclear membrane.

Prokaryote:  In a prokaryotic cell, cell wall is present  such as bacteria, ribosomes are present  but nuclear membrane is absent

Plant: A plant cell possesses cell wall, ribosomes, nucleus and a large vacuole.  

Virus:  Viruses reproduces inside a cell  because they do not have their own energy producing system, nucleus is absent  but nucleic acid ( DNA or RNA) is present  

8 0
3 years ago
Read 2 more answers
How do you introduce your qualities in a letter asking what you want to be when you're older
labwork [276]
<span>You can introduce your qualities in a letter by being casual. You’re writing this letter to yourself, so don’t feel you have to take a formal tone. Write as though you are talking to your best friend. When talking about your current self in this letter, use “I” language. When talking about your future self in this letter, use “you” language. <span>Summarize the important things of yourself. Your letter should start with a quick reminder of who you currently are. Think about mentioning your recent accomplishments, such as a 4.0 GPA, and current interests, including extracurricular activities. This will allow you to see how much your life has changed since you wrote the letter.</span>
</span>

6 0
4 years ago
What role does transpiration play in the water cycle
Airida [17]

Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere. Transpiration is essentially evaporation of water from plant leaves. Transpiration also includes a process called guttation, which is the loss of water in liquid form from the uninjured leaf or stem of the plant, principally through water stomata.

Studies have revealed that about 10 percent of the moisture found in the atmosphere is released by plants through transpiration. The remaining 90 percent is mainly supplied by evaporation from oceans, seas, and other bodies of water (lakes, rivers, streams).

Transpiration and plant leaves

Plants put down roots into the soil to draw water and nutrients up into the stems and leaves. Some of this water is returned to the air by transpiration (when combined with evaporation, the total process is known as evapotranspiration). Transpiration rates vary widely depending on weather conditions, such as temperature, humidity, sunlight availability and intensity, precipitation, soil type and saturation, wind, land slope, and water use and diversion by people. During dry periods, transpiration can contribute to the loss of moisture in the upper soil zone, which can have an effect on vegetation and food-crop fields.

7 0
3 years ago
Read 2 more answers
Where does blood go directly after it leaves the inferior (posterior) vena cava?
Romashka [77]

Answer:

right side

Explanation:

7 0
2 years ago
Read 2 more answers
Using your knowledge of the water cycle, why do you think high sea surface
Wewaii [24]

Answer:

Explanation:

The correlation between sea surface temperature and water vapor is that both are driven by seasonal changes. They both increase in the hemisphere during summer. Seasonal changes in water vapor are, however, more evident across the land, largely due to changes in land surface temperature.

3 0
3 years ago
Other questions:
  • The most common complaint during coronary artery balloon catheterization is:
    6·2 answers
  • WORTH 20 POINTS
    8·1 answer
  • What can rapidly pass directly through the phospholipids of the plasma membrane
    6·1 answer
  • Cacti grow slowly due to the fact that they keep their stomata closed for much of the day. Why would closing their stomata durin
    9·2 answers
  • What is the function of mRNA?
    5·1 answer
  • Which age structure diagram shows that the number of individuals decreases
    12·1 answer
  • In a prokaryotic cell, most ribosomes are _____.
    5·2 answers
  • Write a sentence using the word "dynasty" that clearly shows you know the meaning of the word. (THIS IS FOR HISTORY ANCIENT CHIN
    10·1 answer
  • Drag each graph to the correct location on the image.
    8·2 answers
  • Hello people ~
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!