AP BIOLOGY

LABORATORY REVIEW

MITOSIS AND MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are 2 identical copies of a chromatid?-occurs when a cell duplicates one chromosome
A
sister chromatid
B
chromatids
C
chromatin
D
chromosomes
Explanation: 

Detailed explanation-1: -A chromatid is one of the two identical halves of a chromosome that has been replicated in preparation for cell division. The two “sister” chromatids are joined at a constricted region of the chromosome called the centromere.

Detailed explanation-2: -Sister chromatids are two identical copies of the same chromosome formed by DNA replication, attached to each other by a structure called the centromere. During cell division, they are separated from each other, and each daughter cell receives one copy of the chromosome.

Detailed explanation-3: -A chromosome is made up of two Identical Sister Chromatids. And each sister chromatid is joined at the centromere. A copy of each chromosome is inherited from a male parent and a female parent and this explains the character traits possessed by their offspring (such as facial features reminiscent of the parents).

Detailed explanation-4: -The sister chromatids are pairs of identical copies of DNA joined at a point called the centromere. During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle.

Detailed explanation-5: -Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.

There is 1 question to complete.