Homologous chromosomes pair up together and crossing over occurs occurs where ?

Biology

1 answer:

butalik [34]4 years ago

6 0

Answer:

El entrecruzamiento cromosómico es un proceso biológico que ocurre durante la meiosis, cuando las parejas de cromosomas homólogos, o del mismo tipo, están alineadas. Durante la meiosis los cromosomas emparejados están alineados en las llamadas placas meióticas, y tienen un mecanismo biológico que los mantiene unidos.

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When sea ice forms in the ocean what happens to the salinity of the surrounding ocean water

tatiyna

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3 years ago

The formation of the enzyme pepsinogen

Dafna1 [17]

Answer:

1) First the DNA strands unwind, and RNA polymerase binds to the template strand.

2) Then synthesis of mRNA begins.

3) Then mRNA undergoes intron splicing and exits the nucleus.

4) Then tRNA moves through mRNA with the activated amino acids

attached to it.

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How many molecules of glucose is needed to undergo cell respiration?

masya89 [10]

Answer:

<em><u>One molecule of glucose is needed to produce approximately 38 molecules of ATP in each round of aerobic respiration.</u></em>

Explanation:

In respiration, organisms use food, or glucose made in photosynthesis to obtain energy. Photosynthesizing organisms use light to synthesize chemical energy.

Mitochondria in some organisms provide the most favorable environment for energy metabolism, glucose undergoes a form of combustion, this results in carbon dioxide and water production, together with energy as ATP or adenosine triphosphate.

<h3> </h3><h3>C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP </h3>

<em> glucose+ oxygen → carbon dioxide+ water+ energy </em>

Thus, only one molecule of glucose is needed to produce approximately 38 molecules of ATP.