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प्रश्न
Name the following:
The part of the cell associated with heredity.
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उत्तर
Chromosome
APPEARS IN
संबंधित प्रश्न
What is the number of chromosomes in the gametes of human beings?
What are genes?
Mention whether the following statement is (T) Or (F). Give reason in support of your answer.
The unfertilized human egg has half the number of chromosomes of the body cells.
Label the lettered parts of the given figure and answer the following questions:
(i) What does this diagram represent?
(ii) What is the importance of'd'?
(iii) What are the 'staining' properties of 'b' and 'c'?
(iv) Who gave the term used for this structure today?
(v) What is a?
(vi) Is 'e' present in all chromosomes?
Enumerate the various changes that occur in the nucleus of the cell during anaphase of mitotic division.
Why gametes have a haploid number of chromosomes?
Differentiate between
Gametic meiosis and Zygotic meiosis.
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Multiple Choice Question:
The disappearance of spindle and uncoiling of chromosomes takes place in
Name the following:
Pairs of chromosomes, present in human egg cells.
An inheritable change in the amount or the structure of a gene or a chromosome is called ______.
Match the following.
| 1. Autosomes | - | Trisomy 21 |
| 2. Diploid condition | - | 9 : 3 : 3 : 1 |
| 3. Allosome | - | 22 pair of chromosome |
| 4. Down’s syndrome | - | 2n |
| 5. Dihybrid ratio | - | 23rd pair of chromosome |
Explain the structure of a chromosome.
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
Define Aneuploidy.
The chromosomes are duplicated in ______.
Define the following term:
Chromosome
Rewrite the correct form of the statement by changing the first or last word only:
Duplicated chromosomes remain attached at a point termed as centrosome.
