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4 years ago

Explain why interphase is the longest part of the cell cycle

Biology

1 answer:

Nezavi [6.7K]4 years ago

4 0

Answer:

Interphase is the longest part of the cell cycle. This is when the cell grows and copies its DNA before moving into mitosis. During mitosis, chromosomes will align, separate, and move into new daughter cells. The prefix inter- means between, so interphase takes place between one mitotic (M) phase and the next.

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The majority of the protein inside a red blood cell (erythrocyte) is:

gladu [14]

Answer: Hemoglobin

Explanation: Hemoglobin is a protein very rich in iron found in red blood cells and is responsible for the transportation of Oxygen from the lungs to the whole body. Oxygen binds to the hemoglobin in red blood cells and the red pigmentation of blood that is highly oxygenated is due to the hemoglobin content found in RBC's.

4 0

3 years ago

Seee i look horible..........

patriot [66]

Answer:

yup......

Explanation:

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8 0

3 years ago

Read 2 more answers

In Europe, approximately 4% of people are red-haired, mostly due to a recessive mutation in the melanocortin 1 receptor (MC1R).

Wewaii [24]

Answer:

33%.

Explanation:

The 4% population is red-hair due to the recessive mutation in melanocortin 1 receptor (MC1R).

Since, the population is in Hardy-Weinberg equillibrium- laet the frequency of recessive allele with red - hair is 'q' and the frequency of dominant allele in the population is 'p'.

$q^{2} =4\%$

$q^{2} = 0.04$

q=0.2

According to hardy-weinberg equillibrium

(p+q)=1

p=1-q

p=1-0.2

p=0.8.

The total population with non red hair is calculated by

= $p^{2} +2pq$

= 0.64 + 0.32

= 0.96

The percentage of the population with non red headed carrier for MC1Rr is calculated by:

=0.32/0.96*100

=33%

Thus, the correct answer is (B).

8 0

4 years ago

I am trying to determine reactants going into the electron transport chain. Is this right?

irina1246 [14]

Answer:

Yes, this is correct.

Explanation:

In each glycolytic pathway, glyceraldehyde 3-phosphate dehydrogenase produces 1 molecules of NADH as a result of reduction of NAD+.
Pyruvate dehydrogenase converts pyruvate to Acetyl CoA producing 1 molecule of NADH per pyruvate oxidized.
In Kreb's cycle, isocitrate dehydrogenase, alpha-ketoglutarate dehydrogenase, and malate dehydrogenase reactions produce 1 molecule of NADH each. Furthermore, succinate dehydrogenase reaction produces a single molecule of FADH2 per FAD reduced.
Since, we began with 2 molecules of glyceraldehyde 3-phosphate, we multiply the above figures by 2 and get a total of 10 NADH and 2 FADH2.

4 0

3 years ago

In the diagram below, X represents a process that causes a protein to unfold and stop functioning. Process X is most likely caus

Elodia [21]

Answer:

<u>Temperature</u> is most likely the reason of protein unfolding (denaturation).

Explanation:

In the figure attached, coiled (3-dimensional) protein structure is changed to 2 dimensional structure in which protein is unfolded. This is most likely the result of heating proteins which destroys the hydrogen bonds and non-polar hydrophobic interactions that are necessary to establish the tertiary structure of proteins. Principally, increased temperature results in the increased kinetic energy of atoms within a molecule. If the amount of heat is sufficient to break the hydrogen bonds, protein molecule can unfold to 2D structure as shown in the figure.

5 0

3 years ago