PLEASE HELP WITH THIS ONE QUESTION
What statement about the inheritance of mitochondrial DNA is true?

A) The sperm cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.

B) The egg and sperm cells contribute equal amounts of mitochondrial DNA to the zygote.

C) The egg cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.

D) The sperm cell donates most of the DNA in the nucleus to the zygote, including mitochondrial DNA.

Answers

Answer 1

Answer:

The answer should be C

Explanation:

The egg contributes all the cytoplasm and organelles to the zygote. The sperm only contributes one set of chromosomes.

The typical sperm midpiece contains approximately 50-75 mitochondria with one copy of mtDNA in each. This represents an 8- to 10-fold decline in copy number during spermiogenesis.


Related Questions

write components of xylem and phylem ?

Answers

Xylem contains tracheids, vessels, xylem parenchyma and xylem fibre.Tracheids: They are elongated, tubular dead cells with tapering end walls.Vessels: These are also known as trachea. They are elongated, tubular dead cells. They are joined to each other by end to end forming a continuous pipe. The cells are thick and lignified.Xylem parenchyma: They are also called wood parenchyma. This is the only living tissue of xylem. Xylem fibre: They are dead cells with thick walled fibre.

Phloem consists of sieve tubes, companion cells, phloem parenchyma and phloem fibres.Sieve tubes: These are elongated, tubular living cells arranged in a row, with their perforated end walls forming a sieve. They are non-nucleated. Their protoplasm are inter-connected through sieve plates. They possess vacuoles.Companion cell: They are elongated, lens-shaped cells containing dense cytoplasm and prominent nuclei. These cells maintain connection with sieve cells through pits.Phloem parenchyma: They are living thin walled parenchyma cells.Phloem fibre: They are also known as bast fibre. They are elongated fibre like sclerenchymatous dead cells with thick walls containing pits and interlocked ends. Phloem fibre are the only dead cells in phloem.

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Three plants are grown in the same environmental conditions with equal sunlight, water, and space to grow. One plant grew to have a purple flower while the other two grew white flowers. What is the most likely conclusion that can be made for the change in flower color?(1 point)

Genetic factors caused environmental changes that caused the differences in flower color.
Genetic factors caused environmental changes that caused the differences in flower color.

Genetic factors caused the differences in flower color.
Genetic factors caused the differences in flower color.

Environmental factors caused a genetic mutation that caused the differences in flower color.
Environmental factors caused a genetic mutation that caused the differences in flower color.

Environmental conditions caused the differences in flower color.
Environmental conditions caused the differences in flower color.

Answers

The most likely conclusion that can be made for the change in flower color is that genetic factors caused the differences in flower color.

According to this question, three plants are grown in the same environmental conditions with equal sunlight, water, and space to grow.

However, despite the uniformity in the environmental conditions received by each plant, one plant grew to have a purple flower while the other two grew white flowers.

This difference in flower color is likely caused by the inherent genetic factors of each plant rather than environmental factors because they were treated the same.

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Answer:

Genetic factors caused the differences in flower color.

Explanation:

Which type of chlorophyll is rare in xanthophyceae and is only determine its two genera

Answers

The answer is Chlorophyll

The correct answer is ' Yellow-green algae'.

Why Xanthophyta are called yellow-green algae?

Xanthophyta A phylum of mostly freshwater organisms of the kingdom Protoctista, traditionally known as yellow-green algae, that possess carotenoid pigments (including xanthins), which are responsible for their color, in addition to chlorophylls.

Is Xanthophyta and Xanthophyceae the same?

Commonly known as yellow-green algae, the Xanthophyta includes one Class, Xanthophyceae, characterized by the following general features: (1) the photosynthetic pigments consist of chlorophyll-a and -e, β carotene and xanthophylls; of these, β carotene is usually present in fairly high concentrations.

What is the pigment of Xanthophyceae?

Xanthophyceae is a class comprised of xanthophytes or yellow-green algae. The color is due to the presence of pigments such as xanthophylls and beta carotene. They also have chlorophyll pigments. They have chlorophyll a and c.

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A single base substitution mutation is likely to have a less deleterious effect when the base change exhibits which of the following results

Answers

A single base substitution mutation will be the least likely to cause a deleterious effect when the base change produces the same amino acid as the original.

What is a silent mutation?This scenario is what we call a silent mutation. What this means is that the mutation is almost undetectable due to its not affecting the protein that it will help to form.This is possible thanks to how the genetic code operates, different codons are able to code for the same amino acid.Therefore, there are mutations that do not affect the amino acid or the protein.

Therefore, we can confirm that a mutation will have no negative effects if it is a silent mutation, meaning that the substitution of a base pair happens to code for the same amino acid as the original.

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give an example of a scientific investigation design with appropriate constants and variables
(IV and DV)

Answers

Answer:

An example of a scientific investigation design that uses independent variable and dependent variable in its design is a research that seek to find out the effect of two different fertilizers on the growth of a tuber crop (yam). The independent variable in this case is the type of fertilizer used while the dependent variable is the corresponding growth of the tuber crop. In a research set up, the independent variable is the variable that cause a change in the dependent variable.

Explanation:

Hope this helps

The composition of a mineral represents its
A)size.
B)texture
C)hardness.
D)color.

Answers

Answer: D. color

Explanation:
It would be D color, Hope this helps

What is purebred breeding?

A: A form of Straight Breeding with related animals?
B: A form of straight breeding with non-related animals
C: A form of straight breeding with registered animals
D: A form of straight breeding with grade females and purebred sires.

Answers

A: A form of Straight Breeding with related animals

A purebred refers to offspring resulting from a true breeding.

1. Choose the correct answer.
_____ are stronger at the epicenter of an earthquake.
A) Lava flows
B) Continent currents
C) Hot spots
D) Seismic waves

Answers

Answer: I think the answer is d sorry if its wrong.

Explanation:

D I think good luck <3

The brightness of a star depends on the amount of light energy coming from the star.

Which factor also affects the brightness of a star in the sky?


the amount light shining on the star


the distance of the star from Earth


the season of the year on Earth


the number of other separate stars seen around it

Answers

Answer:

Three factors control the brightness of a star as seen from Earth: how big it is, how hot it is, and how far away it is. Magnitude is the measure of a star's brightness. Apparent magnitude is how bright a star appears when viewed from Earth.

Explanation:

Answer:

the amount light shining on the star

Explanation:

a person gets energy from an apple by eating it. How does energy get into the apple in the first place? A the apple absorbs energy from the soil while it is on the tree B. the apple absorbs energy from the sun when it is in sunlight. C, the apple tree stores energy from the sun in the apple as sugar. D. the apple tree stores energy from the soil in the apple as sugar.

Answers

Answer:

The apple tree stores energy from the Sun in the apple as sugar.

Explanation:

study island

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

E

x-Y

4

F

X-8

B

G

If AABC and AGEF are congruent, the value of x is___

and the value of y is____

Answers

Answer:

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider the equation below. -2(bx-5)=16The value of x in terms of b is The value of x when b is 3 is

Name one observation in a urine culture that would result in a rejection of the specimen and
culture.

Answers

Answer:

What are 3 things that can be tested in a urinalysis to look for abnormalities?

Things the dipstick test can check for include:

Acidity, or pH. If the acid is abnormal, you could have kidney stones, a urinary tract infection (UTI), or another condition.

Protein. This can be a sign your kidneys aren't working right. ...

Glucose. ...

White blood cells. ...

Nitrites. ...

Bilirubin. ...

Blood in your urine.

Explanation:

how to report an account that keeps posting these links in our answers?​

Answers

When they answer the questions, there is a flag that appears, if you click on it, you can flag the answer and it reports them.

Question 1) Discuss how compounds in different types of organisms can be used to benefit people? ( Will Mark Brainliest).​

Answers

Answer:

Compounds from different organisms are being used widely bu humans for their benefits. Some of the compounds are used as drugs. For example, penicillin is used as a drug or antibiotic. There are many plants which provides humans with other types of medicines and herbal remedies. There are other compounds which are used for cancer treatment. For example, taxol is a compound obtained from trees which are being used as anticancer drugs.

Explanation:

cellular respiration
.
help with chart

Answers

The arrows mean that it belongs in that box and in the box where the caption is in.

Meaning that you should write the same answer in both boxes.


please help me i’ll give brainlist!

Answers

i’m pretty sure it’s D

The graph below shows the number of viable bald eagle nests along a
25-mile long section of the Mississippi River between Wisconsin and
Minnesota. IF EACH BALD EAGLE NEST ACCOUNTED FOR A BREEDING
PAIR, what is the probable carrying capacity of this environment? *

Answers

The carrying capacity of this environment is 225 from the graph shown.

An ecosystem is a self supporting unit in which materials and energy are exchanged. The carrying capacity of an ecosystem refers to the maximum number of species that the ecosystem can effectively sustain without breaking down.

From the graph, we can see that the population of species continues to increase until the number reaches 225. This is the carrying capacity of this environment.

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you can find a nucleus in the cells of

Answers

Eucariotec like red blood cells and others
Procariote is like bacteria or amiba

6. Identify the main role of cellular respiration? *

Answers

“The main role is the process that occurs in the mitochondria of organisms to break down sugar in the presence of oxygen to release energy in the form of ATP”

Need urgent help please!!

1.Which is the independent variable

2.Which is the dependent variable.

Answers

Answer:

Independent: Volume of Liquid (mL)

Dependent: Mass of Liquid (g)

Explanation:

The independent variable is always on the x-axis and the dependent is always in the y-axis.

Which organism receives the most energy in the food chain

Answers

Answer:

humans

Explanation:

A rise in __________ released from the sarcoplasmic reticulum allows actin to bind to myosin and cause a contraction, which requires __________ energy.

Answers

A rise in CALCIUM released from the sarcoplasmic reticulum allows actin to bind to myosin and cause a contraction, which requires ATP energy. ATP is the energy coin of the cell.

Adenosine triphosphate (ATP) is the energy coin that cells use to carry out many metabolic reactions (e.g., reproduction, motion, differentiation, etc).

The sarcoplasmic reticulum is an organelle located inside muscle cells similar to the smooth endoplasmic reticulum.

This organelle (sarcoplasmic reticulum) acts to store calcium which is required during muscle contraction.

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physiology Of Digestion Of Earthworm In Simple Word Of Mouth​

Answers

Answer:

They do not have teeth. A liplike extension over the mouth helps direct food into the mouth, where the muscular pharynx (throat) grabs it, coats it with saliva and pushes it down the esophagus into the crop, where it is stored before moving on to the gizzard.

Explanation:

The theme of fly for your life
HURRYYY!!!

Answers

Answer:

gunship

Explanation:

Explain what TWO forces cause Earth’s water to bulge?

Answers

Answer:

Gravity and inertia act in opposition on the Earth's oceans, creating tidal bulges on opposite sites of the planet. On the “near” side of the Earth (the side facing the moon), the gravitational force of the moon pulls the ocean's waters toward it, creating one bulge.

How do you think scientists figure out the life cycle of a star

Answers

Answer:

space

Explanation:

they figured it out going to space and since a star is a small peice of the sun they can't touch it it's impossible without getting heat burns or dying so they ither observe a star using a telescope or went to space for days

I need help with these questions I will make you Brainlest please help

Answers

click on the attachment

5. Cranberries have a pH between 2.3 and 2.5. This makes them an

Answers

Answer:

Cranberry Juice pH

Explanation:

Foods that have a pH above 7.0 are considered alkaline, while those with a pH below 7.0 are acidic. Cranberry juice typically features a pH of between 2.3 and 2.5, making it a fairly acidic beverage.

After food in the stomach is mixed with gastric juices, it forms a semiliquid called Select one: a. phlegm b. chyme c. bile d. feces e. bolusin

Answers

The stomach is the sac-shaped part of the gastrointestinal tract. The stomach wall has folds that open when the stomach is full to store swallowed food. Digestion of food in the stomach is done by gastric juice and its movements. At the end of digestion in the stomach is a digestive mixture called chyme

what are the three parts of the data analysis section of a lab report?​

Answers

Answer:

1) rough reading

2)initial reading

3)final reading

Explanation:

those three are always important for every lab report

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