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Elanso [62]
2 years ago
15

Which of the following statements is true?

Biology
1 answer:
Dimas [21]2 years ago
5 0

Answer:

B. The periplasmic space contains the peptidoglycan layer of Gram-negative bacteria.

Explanation:

Periplasma is the compartment that surrounds the cytoplasm in Gram negative bacteria. It is comprised between the plasma membrane (which is inward) and the outer membrane of the gram negative, on the outside.

This periplasmic space contains the peptidoglycan layer and proteins that are responsible for receiving extracellular signals, among other functions.

The high concentration of peptidoglycan causes this space to be in a gel-like state.

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Use the word bank below to complete the passage below describing mitosis and meiosis. All words will be used at least once and m
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Answer:

1. diploid ,Mitosis

2. mitosis, meiosis

3. diploid, sister chromatids

4. haploid, homologous chromosome

5. haploid, sister chromatids

Explanation:

1. The Giant Panda has 42 chromosomes but these chromosomes exist in the form of homologous pairs therefore the Panda are diploid organisms. The somatic cells of the Panda undergo mitosis like skin cells.

2. The Germ cells are present in the testicles of the Panda which makes an exact copy of themselves by mitosis but these germ cells undergo meiosis to produce sperms.

3. The Mitotic division forms two daughter cells with the same genetic material because the sister chromatids of homologous chromosomes move to the opposite pole.

4. The meiosis I am also known as reductional division as the homologous chromosome separate and move to opposite poles during meiosis I and the ploidy changes from diploid to haploid.  

5. During meiosis II, the sister chromatids of a chromosome separate and move to the opposite poles as a result of this the haploid cells are formed.

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3 years ago
To enter or leave a cell substance must be through
Maksim231197 [3]

Answer:

d - the nucleus

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