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प्रश्न
Name the following:
Cells having a single set of chromosomes.
उत्तर
Haploid
APPEARS IN
संबंधित प्रश्न
Name the sex chromosomes in human males and females
Name the following:
The number of chromosomes present in a nerve cell of a human being.
Give appropriate biological or technical terms for the following :
The condition in which a pair of chromosomes carries similar alleles of a particular character.
What is the difference between chromatin fibre and chromosome?
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 |
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
Choose the correct answer:
The term 'chromosome' was coined by ___________
Choose the correct answer:
A 'V' shaped chromosomes has to _____________
Synthesis phase in the cell cycle is called so for the synthesis of more of
Enumerate the various changes that occur in the nucleus of the cell during anaphase of mitotic division.
Explain the Term Zygotene
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Give Technical Terms
The stage at which the formation of chiasmata occurs.
Duplicated chromosomes are joined at a point termed ______.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
Define euploidy.
The centromere is found at the centre of the ______ chromosome.
An inheritable change in the amount or the structure of a gene or a chromosome is called ______.
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
Distinguish between the following pair:
Karyotype and Karyokinesis
