The incorrect statement about chromosome is that chromosomal localisation is preceded by DNA replication. Explanation: the replication of the DNA takes place during the preparatory phase or the interphase of the cell division. the duplication of the chromosome usually takes place in the metaphase of the cell division.
Which of the following is not a part of a chromosome?
RNA is not a part of the chromosomes. The DNA is transcribed into RNA though.
Which of the following is a correct description of a chromosome?
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). … Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).
Which statement is not true about mitosis?
The correct answer is 1) mitosis is the process that duplicates and divides the nuclear contents only. This statement about mitosis is not true. Mitosis is the process wherein it creates identical cells. So everything is duplicated.
Which is true of homologous chromosomes?
The two chromosomes in a homologous pair are very similar to one another and have the same size and shape. Most importantly, they carry the same type of genetic information: that is, they have the same genes in the same locations. However, they don’t necessarily have the same versions of genes.
Which are the two main parts that make up a chromosome?
DNA is coiled around proteins called histones, which provide the structural support. Chromosomes help ensure that DNA is replicated and distributed appropriately during cell division. Each chromosome has a centromere, which divides the chromosome into two sections – the p (short) arm and the q (long) arm.
What are the 4 parts of a chromosome?
6 Main Parts of a Chromosome
- Part # 1. Pellicle and Matrix:
- Part # 2. Chromatids, Chromonema and Chromomeres:
- Part # 3. Centromeres (= Primary constriction):
- Part # 4. Secondary Constriction:
- Part # 5. Satellite:
- Part # 6. Telomere:
What is chromosome and its types?
There are four main types of chromosomes: metacentric, submetacentric, acrocentric, and telocentric. Chromosomes are found within the nucleus of most living cells and consist of DNA that is tightly wound into thread-like structures.
What are the 4 types of chromosomes?
On the basis of the location of the centromere, chromosomes are classified into four types: metacentric, submetacentric, acrocentric, and telocentric.
Which of the following is true of mitosis?
The correct answer is A. It maintains the same chromosome number in the daughter cells as in the parent cell. Explanation: Mitosis is also known as equational division because in mitosis the replicated chromosome becomes equally divided and distributed into two daughter cells.
What is produced by mitosis?
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells. Below we highlight the keys differences and similarities between the two types of cell division.