All categories

2 years ago

How are genes passed from parent to offspring?

Biology

1 answer:

goldenfox [79]2 years ago

4 0

Answer:

Explanation:

A sperm and an egg each contain one set of 23 chromosomes. When the sperm fertilizes the egg, two copies of each chromosome are present (and therefore two copies of each gene), and so an embryo forms.

You might be interested in

10. Explain what will happen if you forget to water your plants? Why would this happen?

Andru [333]

Answer:

Not enough water is one of the most common reasons that plants are unhealthy, wilt, and die. It’s not always easy, even for expert gardeners, to get watering right. To avoid or minimize the problems associated with under watering, know the signs of plants getting too little water.

3 0

2 years ago

Complete each sentence by putting the labels to the appropriate blanks. Then place each sentence in a logical order beginning wi

sergij07 [2.7K]

Answer:

c. Beginning with the return from the systemic circulation, blood enters the right atrium. 

a. Blood enters the right ventricle from the right atrium through the right atrioventricular valve which is also known as the tricuspid valve

d. The right ventricle contracts next, which forces blood up through the right semilunar valve which is otherwise known as the pulmonary valve .

e. After circulating through the pulmonary capillaries, the blood returns to the left atrium. 

f. From the left atrium, blood moves through the left atrioventricular valve which is also referred to as the bicuspid or mitral valve.

b. From the left ventricle, the blood is pumped up to aorta the through the left semilunar valve which is sometimes referred to as the aortic valve.

Explanation:

c. Beginning with the return from the systemic circulation, blood enters the right atrium.

a. Blood enters the right ventricle from the right atrium through the right atrioventricular valve which is also known as the tricuspid valve

d. The right ventricle contracts next, which forces blood up through the right semilunar valve which is otherwise known as the pulmonary valve .

e. After circulating through the pulmonary capillaries, the blood returns to the left atrium.

f. From the left atrium, blood moves through the left atrioventricular valve which is also referred to as the bicuspid or mitral valve.

b. From the left ventricle, the blood is pumped up to aorta the through the left semilunar valve which is sometimes referred to as the aortic valve.

3 0

3 years ago

The one on the bottom

bonufazy [111]

Natural selection or survival of the fittest can cause a major evolution as the species at risk need to stay alive and therefore need to become more adapted to the situation at hand. The species can evolve through generations to become more crafted to the predatorial habits of their predators. If the females are less at risk than the males then the males might evolve to become more protected or if some of the species live in a different situation maybe not even that far away, that can have a big impact on the evolutionary habits of the species at hand.

I hope I'm right

8 0

2 years ago

Men can produce sperm throughout their adulthood because_____. (1pts)

kvasek [131]

Men can produce sperm throughout their adulthood because their reproductive organs and glands are fully developed. During their childhood and adolescence the glands and organs are not functional for reproductive purposes.

8 0

3 years ago

In a series of 250 base pairs there are 28 guanine. How many adenines are there?

arsen [322]

Answer:

278

Explanation:

Because How Many Is A Keyword

3 0

2 years ago

Read 2 more answers