In a normal of the errors that occur during dna replication are a. 10% by the exonuclease activity of dna polymerase b. 99% by the exonuclease activity of dna polymerase c. 99% by the mismatch repair pathway d. 99% repaired prior to mitosis

The correct option is B. In a normal cell, 99% of the errors that occur during DNA replication are repaired by the exonuclease activity of DNA polymerase

Explanation:

DNA proofreading can be described as a method by which in which the DNA polymerases check and repair any errors they might have made during the replication of the DNA. The exonuclease activity of the DNA interprets whenever a wrong nucleotide has been placed and corrects it.

Without the method of proofreading, the DNA would undergo many errors during the process of  replication which will lead to many faulty proteins being formed.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

c. the initial amount of money placed in the savings account