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प्रश्न
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. |
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उत्तर
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. |
APPEARS IN
संबंधित प्रश्न
The Chromatin material is formed forms of ______.
Fill in the blank
The _______ (s) are surrounded by radiating rays called aster
Expand the following biological abbreviations :
DNA
Answer the following question in your own words.
What is meant by ‘chromosome’?
Mention the contribution of the scientist given below in the study of chromosome:
Sutton and Boveri
Choose the correct answer:
Chromosomes largely consist of _______________
Give a reason for the following:
Gametes must be produced by meiosis for sexual reproduction.
Give Reasons for the following
Chromosomes are the carriers of heredity.
Differentiate between
Chromatin and Chromosome.
Give Technical Terms
The phase of meiosis at which homologous chromosomes are separated.
State the Location: Chromosomes
State the Location: Polytene chromosome
Name the following:
Cells having a single set of chromosomes.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
Compare X chromosome and Y chromosome.
The number of chromosomes found in human beings is ______.
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 |
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
Small swellings on the surface of the chromosome are called______.
The two non-sister chromatids of a paired chromosome are attached to each other at ______ during the process of crossing over.
