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klasskru [66]
3 years ago
13

С Е

Biology
1 answer:
Anon25 [30]3 years ago
3 0

Answer:

Crossing over

Explanation:

During prophase I of meiosis, homologous chromosomes pair to form bivalents. The chromatids of bivalents may form intimate contact points called chiasmata. At the chiasmata breakage may occur and exchange of chromatids segments between non sister chromatids may take place. This is crossing over ad results in new gene combinations causing variations.

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Which protein inhibits interaction between actin and myosin to prevent skeletal muscle contraction; and which ions remove the in
zloy xaker [14]

Answer:

Tropomysin, calcium

Explanation:

Tropomysin is a protein that prevents muscle contraction hence acts as a contraction inhibitor. It wraps around the actin blocking the binding sites for myosin on the actin.

Muscle will only contract when they get a rush of calcium ions.

The calcium ions binds to troponin, the troponin changes its shape. The change in shape will remove tropomyosin from the binding sites allowing myosin to bind on the actin leading to muscle contraction.

7 0
3 years ago
In the large intestine material is stored how many<br>hours prior to elimination?​
Sunny_sXe [5.5K]

Explanation:

After you eat, it takes about six to eight hours for food to pass through your stomach and small intestine. Food then enters your large intestine (colon) for further digestion, absorption of water and, finally, elimination of undigested food. It takes about 36 hours for food to move through the entire colon.

4 0
3 years ago
Read 2 more answers
which of the following shows a possible evolution of a cave formation can you give me the order is it stalactites soda straw col
3241004551 [841]
Stalactites <span>show a possible evolution of a cave formation.</span>
5 0
3 years ago
The materials of the crust have less mass than materials deeper in the earth.<br><br> True<br> False
mezya [45]

Answer:

True

Explanation:

The crust makes up less than 1% of earths mass.

5 0
2 years ago
If a cat normally has 38 chromosomes in its somatic (body) cells, how many chromosomes will be in its gametes? a. 76 b. none of
Keith_Richards [23]

Each gamete has half the number of chromosomes of the somatic cell. Hence, cats' gametes will have <u>19 chromosomes.</u> Option C.

<h3>What are the type of cells in the organism?</h3>

The types of cells in the organism are somatic and germ cells.

Both the somatic and germ cells go through mitosis producing two daughter cells with the<u> same </u><u>genetic dotation</u>.

Somatic cells are any cell in the body except sperm and egg cells. They are diploid, meaning they contain two chromosome sets, each one inherited from each parent.

Germ cells are diploid reproductive cells. They suffer mitosis to form more sexual cells, and a few suffer meiosis to produce haploid gametes. Each germ cell produces 4 haploid gametes.

Each gamete has half the number of chromosomes of the somatic cell. Hence, cats' gametes will have <u>19 chromosomes.</u> Option C.

You can learn more about gametes at

brainly.com/question/2569962

#SPJ1

5 0
2 years ago
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