2. Each trait is defined by two alleles. Each allele can either be dominant or recessive ( TT or tt or Tt)
It is a membranous network found in the cytoplasm. The surface for chemical activity in a cell is the endoplasmic reticulum.
Multiply 5730 years by 2 since two half-lives have gone by for carbon.
<u>Explanation</u>:
The half-life of a radioactive isotope depicts the measure of time that it takes half of the isotope in an example decay. On account of radiocarbon dating, the half-existence of carbon 14 is 5,730 years
The half-life of carbon-14 is 5730 years.
In this manner, after
1 half-life there is 50 % = 1/2 of the first amount left.
2 half-lives there is 25 % = 1/4 of the first amount left.
25% is two half-lives.
Every 50% of life requires 5730 years.
So two half-lives require 2 × 5730
Answer: C
Explanation:A defect in a cell-cycle checkpoint prevents a cell from entering the S phase.
I have no idea but I just want some points
