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4 years ago

For G1 describe at least one way mistakes during the cell cycle could result in problems

2 answers:

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For G1-phase, one way mistakes during the cell cycle could result in problem is cell doesn’t have a sufficient amount of proteins or other raw materials for the replication of DNA. This condition results in formation of mutated daughter cell.

Further Explanation:

The cell cycle refers to an ordered flow of events which includes cell growth as well as cellular division. This cycle produces two new daughter cells. The cycle starts with interphase in this the cell mature and replicates its own DNA or deoxyribonucleic acid. The interphase begins with:

G1 phase: This is the primary growth phase provide nutrient to the cell. If a cell doesn’t have a sufficient amount of protein or other raw materials for the replication of DNA. It result in formation of daughter cells with damaged or mutated DNA, if not gets repaired.
S phase or synthesis of DNA: During this phase, the replication of DNA takes place. The centrosome is divide and forms mitotic spindle during the mitosis phase. Mistake in this phase will leads to the loss of DNA mutations or integrity.
G2 or second gap: during this phase, the cell mainly replenishes its energy stores as well as synthesizes the proteins which are required for the chromosome manipulation. In this phase error is resolved even in case of unresolved error the cell undergoes division to pass on the error to the daughter cell.

The second stage of a cell cycle is the mitosis or M phase. Chromosomal abnormalities can occur during metaphase of meiosis. It would lead to enuploidy or polyploidy, due to unequal division of chromosomes. Mitotic phase refers to a multiphase process in this the chromosomes are aligned, segregated, and moved into the two new daughter cells which are identical to each other.

Learn more:

Learn more about mitosis brainly.com/question/6462270
Learn more about the menstrual cycle brainly.com/question/723944
Learn more about meiosis brainly.com/question/94813

Answer Details:

Grade: High School

Subject: Biology

Chapter: Cell Cycle

Keywords:

Mitosis, meiosis, cell division, anaphase, telophase, cytokinesis, prophase, metaphase, segregation, chromosome.

ch4aika [34]4 years ago

6 0

Ans.

G1 (or gap 1) is first stage of cell cycle of cell division in eukaryotes. During G1 phase, cell starts to synthesize mRNA (messenger RNA) and protein molecules, which are necessary for DNA replication in next stage and other processes. At the end of G1 stage, cell moves into S-phase of cell cycle, where DNA replication takes place.

Before entering the S-phase, cell's nutritional content and DNA integrity is checked. If cells in G1 show DNA errors or damaged DNA (such as breaks in DNA strands), it will lead to problems as 'it will result into formation of daughter cells with damaged or mutated DNA, if not gets repaired.'

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$p + q = 1\\0.3 + q= 1\\q= 1- 0.3\\\\q= 0.7$

Then to find the frequency of the individuals homozygous for this allele the following formula needs to be used-

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