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Valentin [98]
3 years ago
12

PLEASE HELP IF YOU CAN THERE BIOLOGY MITOSIS QUESTIONS

Biology
1 answer:
kap26 [50]3 years ago
5 0

1) Cells duplicate their chromosomes before dividing instead of after because the daughter cells would each lose one-half of the genetic information.

The duplication of chromosomes automatically leads to the duplication of the genetic information on the chromosomes and each daughter cell receives a copy each of the genetic information.

If the information are not duplicated before dividing, it means that each daughter cell will receive half information.

2) If a cell that starts with 16 chromosomes lost half of its genes during each cell division, it will take 4 divisions for the gene to remain 1.

  • First division, the genes would remain 8 from 16
  • Second division, the genes would remain 4
  • Third division, the genes would remain 2
  • Fourth division, the gene would remain only 1.

More on cell division can be found here: brainly.com/question/24276929

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The round pea shape is dominant to the wrinkled pea shape, which means that, in the Punnett Square, the combinations of RR, Rr, rR, will all come out to be round pea shape.

The last box, rr, would be the one that gives the wrinkled phenotype.

In this case, by ratio, wrinkled phenotype show up 25%

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