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प्रश्न
Choose the correct answer:
Chromosomes largely consist of _______________
विकल्प
DNA and histones
DNA and RNA
RNA and histones
histones and ions
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उत्तर
Chromosomes largely consist of DNA and histones
APPEARS IN
संबंधित प्रश्न
Give appropriate biological or technical terms for the following :
The condition in which a pair of chromosomes carries similar alleles of a particular character.
The term “chromosomes” literally means ______.
Correct the following statement if there is any mistake:
If there are 46 chromosomes in a cell, there will be 23 chromatin fibres inside the nucleus during interphase.
Match the events given in column A with the phase in mitotic cell division in column B.
| Column ‘A’ | Column ‘B’ | ||
| 1. | Chromosomes get arranged in a horizontal plane at the equator. |
a. | Anaphase |
| 2. | Daughter chromosomes move to the opposite poles of a spindle |
b. | Prophase |
| 3. | Chromosomes become visible as fine, long threads. |
c. | Telophase |
| 4. | Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. |
d. | Metaphase |
Choose the correct answer:
In an interphase cell chromosome are as _____________
Choose the correct answer:
Chromosomes number is halved in ____________
Mention the contribution of the scientist given below in the study of chromosome:
Sutton and Boveri
Write a sentence of the following:
Telomere
What is the importance of meiosis in creating variations?
Give Reasons for the following
The meiosis is called reductional division
Identify the stages of meiosven below and label them.
Name the following:
The part of the cell associated with heredity.
Complete the following sentence with appropriate word :
Polytene chromosomes are found in _________ of fly larvae.
State the Location: Polytene chromosome
Name the following:
Cells having a single set of chromosomes.
Name the following:
The diploid number for cell of man.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
Name the following:
The pattern of arrangement of genes along a chromosome.
Long answer type question.
Describe the different types of chromosomes.
Identify the TRUE statements with respect to aneuploidy.
- When the chromosome number is not the exact multiple of the haploid set, it is described as aneuploidy.
- Aneuploidy is only addition of one or more chromosome(s) to the total number of chromosomes in a cell.
- Aneuploidy is further classified as hypoploidy and hyperploidy.
