Answer:
The correct answer is option A.
Explanation:
Cell cycle checkpoints are regulating mechanism that ensures the presence and viability of the cellular components essential for cell division.
There are three major checkpoints one G1 second at M phase and third is G2 checkpoint. M phase checkpoint ensures for chromosome spindle attachment. G1 checkpoint checks the nutrients, DNA damage and growth.
Thus, the correct answer is option A.
Answer: A alleles
Explanation: this is because they are alternate genes that can make up different traits .
Answer:
My guess would be the fourth option
Explanation:
All living thing have chemical reactions within their body, and ph can affect thous reactions.
A presumptive Test presumes the pet presence of the question substance it is useful because it tells the drug is used false positive is possible meaning that the test result is positive but the substance is not present.
