Once an organism reaches adulthood, many somatic cells seldom undergo mitosis. Why? which one is correct?...
Once an organism reaches adulthood, many somatic cells seldom undergo mitosis. Why? which one is correct?
Their DNA is damaged anThey cannot pass the checkpoints
Their nucleus has been degraded
They cannot produce MPF
They enter into nondividing G0
question 2
Which of the following is true of a species in which 2n = 12?
The species has 24 chromosomes in each somatic cell
The species has 8 homologous chromosomes
The species has 12 homologous chromosomes
This species gametes have 6 chromosomes
Homework Answers
1. Option 4 is
correct
G0 phase = Quiescent phase
In this phase, cells remain metabolically active but they never
enter into M-phase.
Most of the cells in an adult enter into G0 phase
Ex: Adult muscle cells and neuron cells
2. Option 1 and
4 are correct
Somatic cells = 2n = Diploid = 12
Gametes = n = Haploid = 6
Number of homologous pairs = 6
Add Answer to:
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