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प्रश्न
उत्तर
In man, there is a pair of sex chromosomes. In males, it is X and Y while in female, the sex chromosomes are X and X which are identical to each other.
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संबंधित प्रश्न
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
Choose the correct answer:
Centromere is related to _______________
Mention the contribution of the scientist given below in the study of chromosome:
Waldeyer
Enumerate the various changes that occur in the nucleus of the cell during anaphase of mitotic division.
What is the importance of meiosis?
Differentiate between
Gametic meiosis and Zygotic meiosis.
Draw a duplicate chromosome and label its part.
Explain the Term Leptotene
Explain the Term Centrioles
Name the following:
The part of the cell associated with heredity.
Multiple Choice Question:
How many chromosomes are found in a cell of humans?
Multiple Choice Question:
After mitotic cell division, a female human cell will have
The number of chromosomes found in human beings is ______.
The loss of one or more chromosomes in ploidy is called ______.
An inheritable change in the amount or the structure of a gene or a chromosome is called ______.
Some of the chromosomes have an elongated knob-like appendages known as telomere.
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.
Normally, genes occur in a pair of chromosome, but genes of X and Y chromosomes shows different gene loci indicating ______.
After a mitotic cell division, a human female cell will have ______.
