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Question
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. |
Solution
Change in the number or arrangement of genes in the chromosome.
| Column I | Column II |
| Genetics | Study of laws of inheritance of characters |
| Autosomes | Chromosomes are other than the pair of sex chromosomes. |
| Recessive gene | A gene that can express only when in a similar pair. |
| Allele | The alternative forms of a gene. |
| Homologous chromosomes | Chromosomes are similar in size and shape. |
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Question 1:
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Multiple Choice Question:
How many chromosomes are found in a cell of humans?
State the Location: Polytene chromosome
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The Law of independent assortment holds good for the gene pairs that occur in different pairs of chromosomes.
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A specific part of a chromosome that determine hereditary characteristics.
Write the functional activity of the following structure:
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Explain the structure of a chromosome.
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
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