A replicated chromosome is composed of a. two homologous...

Name: Problem 5, Chapter 15: Biology
Uploaded: 2021-06-25T19:27:00-08:00
Duration: 1 min 57 s
Channel: Andrea Meyer
Description: A replicated chromosome is composed of a. two homologous chromosomes held together at the centromere. b. four sister chromatids held together at the centromere. c. two sister chromatids held together at the centromere. d. four homologous chromosomes held together at the centromere. e. one chromosome with a centromere.

A replicated chromosome is composed of a. two homologous chromosomes held together at the centromere. b. four sister chromatids held together at the centromere. c. two sister chromatids held together at the centromere. d. four homologous chromosomes held together at the centromere. e. one chromosome with a centromere.

A replicated chromosome is composed of
a. two homologous chromosomes held together at the centromere.
b. four sister chromatids held together at the centromere.
c. two sister chromatids held together at the centromere.
d. four homologous chromosomes held together at the centromere.
e. one chromosome with a centromere.

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Key Concepts

Replicated Chromosome

A replicated chromosome is a chromosome that has been duplicated during the S phase of the cell cycle, resulting in two identical copies of the DNA molecule. These copies are called sister chromatids, which remain attached to each other until they are separated during cell division.

Sister Chromatids

Sister chromatids are the two identical halves of a replicated chromosome. They are bonded together by a structure called the centromere and are responsible for ensuring accurate segregation of genetic material during cell division.

Centromere

The centromere is a specialized region on a chromosome that holds the sister chromatids together after replication. It plays a crucial role during cell division by serving as the attachment point for spindle fibers, which help separate the chromatids into two daughter cells.

Homologous Chromosomes

Homologous chromosomes are pairs of chromosomes, one inherited from each parent, that contain the same genes in the same order. Unlike sister chromatids, homologous chromosomes are not identical copies but are similar in structure and genetic content, and they pair during meiosis for genetic recombination.

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