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Humans have 46 chromosomes. Their sperms and eggs will have ______ chromosomes each.
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.
Expand the following biological abbreviations :
DNA
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Choose the correct answer:
Centromere is related to _______________
The number of chromosomes in a certain type of cell division is halved. This kind of cell division occurs in ______.
Why gametes have a haploid number of chromosomes?
What is the importance of meiosis in creating variations?
Give Reasons for the following
Chromosomes are the carriers of heredity.
Explain the Term Centrioles
Explain the Term Chromosomes
Multiple Choice Question:
How many chromosomes are found in a cell of humans?
State the Location: Polytene chromosome
Give Reason:
The Law of independent assortment holds good for the gene pairs that occur in different pairs of chromosomes.
Give Technical Term:
Transmission of characters through generations.
Complete the following sentence with appropriate word:
The chromosomal theory of inheritance was proposed by ____________in 1902.
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| Genetics | Chromosomes are similar in size and shape. |
| Autosomes | The alternative forms of a gene. |
| Recessive gene | Study of laws of inheritance of characters |
| Allele | A gene that can express only when in a similar pair. |
| Homologous chromosomes | Chromosomes are other than the pair of sex chromosomes. |
Compare X chromosome and Y chromosome.
The number of chromosomes found in human beings is ______.
The sex of the newborn child is a matter of chance and neither of the parents may be considered responsible for it. What would be the possible fusion of gametes to determine the sex of the child?
