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leonid [27]
4 years ago
12

What happens during the S subphase of interphase?

Biology
1 answer:
RUDIKE [14]4 years ago
5 0
The S interphase is when the DNA splits into two copies of itself
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What is the most common cause of iron deficiency anemia?
defon
Hi!

Some of the most common causes of iron deficiency anemia include chronic blood loss (chronic kidney deisease) and loss of iron in the blood.
8 0
4 years ago
With independent assortment, the ratio of genotypes in the F2 generation of a cross between true-breeding strains (AA bb x aa BB
MariettaO [177]

Answer:

c. Aa Bb

Explanation:

The parents were pure breeding with genotypes AAbb and aaBB. A cross between AAbb and aaBB would produce AaBb genotypes in F1 progeny. Two F1 strains would be crossed to produce F2 progeny. The F2 progeny would have the genotype ratio= 1:2:1:2:4:2:1:2:1.

Out of all the obtained genotypes in the F2 generation, the proportion of "AaBb" genotype was 4/16. Therefore, "4" in the given ratio represents the genotype "AaBb".

7 0
4 years ago
Classify each cell as haploid or diploid. 1. microspore:
Alex17521 [72]

Answer:

microspore: haploid

2. first polar body: haploid

3. spermatid: haploid

4. ovum: haploid

5. secondary oocyte: haploid

6. primary spermatocyte: diploid

7. microsporocyte: diploid

8. oogonium: diploid

9. megaspore: haploid

10. spermatogonium: diploid

Your answer

Explanation:

1. Microspore is a haploid spore produced by mostly ferns. They give rise to male gametophytes, which in turn produces sperm cell.

2. Polar body is one of the haploid cells that forms during the process of oogenesis (gametogenesis), specifically when the primary oocyte undergoes an unequal division.

3. A spermatid is an haploid cell that arises from the second meiotic division of the spermatogonia.

4. The ovum is the female gamete of most sexual reproducing organisms. It is also called the EGG CELL. It is haploid.

5. Secondary oocyte are haploid cells that results from the meiotic division of the primary oocyte.

6. Primary oocyte is the diploid cell that starts the meiotic division during oogenesis. It arises from the mitotic division of the oogonium.

7. The microsporocyte is the diploid cell that undergoes meiotic division to produce microspores in ferns and other land plants.

8. Oogonium are the diploid stem cells that initially starts the oogenesis process. It undergoes mitosis to form the primary oocyte, which divides meiotically till the ovum is formed.

9. Megaspore is a haploid spore that gives rise/germinates to the female gametophyte in ferns. The female gametophyte produces the haploid eggs.

10. Spermatogonium are undifferentiated stem cells that produces the sperm cells in males via the process of spermatogenesis. The spermatogonia is diploid in nature

5 0
3 years ago
The Hardy-Weinberg law is used to calculate allele and genotype frequencies ____. Question 1 options: in small populations when
Solnce55 [7]
Your answer can be found on quizlet, Brainly won’t let me comment the answer. Just copy+paste :)
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3 years ago
PLEEEAAASEEE HEEELLLPPPP!!! I CAN MARK BRAINLIEST! Write a well-explained paragraph for the prompt below. Be sure to explain BOT
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It is crucial that we protect, conserve, and support the global population of producers. This claim is supported by the evidence that was discovered in the experiment of the water tank. As seen in the experiment, when the fish were increase, the levels of oxygen were decreased. Then, as soon as more plants (producers) were added to the tank, the oxygen levels increased once again. Theses evidences can be applied on a larger scale of the earth. An analogy could be made between the fish and plants in the tank to the animals, humans, and plants all over the world. As the population of animals and humans continue to grow around the world, more and more trees and plants get cut down. As this continues the oxygen levels will decrease, which can be supported by the evidence in the lab.
6 0
4 years ago
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