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प्रश्न
Name the following:
The pattern of arrangement of genes along a chromosome.
उत्तर
Linearly
APPEARS IN
संबंधित प्रश्न
State the exact location of the Centromere
Name the following:
The number of chromosomes present in a nerve cell of a human being.
The Chromatin material is formed forms of ______.
What is the difference between chromatin fibre and chromosome?
Humans have 46 chromosomes. Their sperms and eggs will have ______ chromosomes each.
Fill in the blank
The _______ (s) are surrounded by radiating rays called aster
Answer the following question in your own words.
What is meant by ‘chromosome’?
Choose the correct answer:
Sex of an individual is determined by ____________
How does colchicine act as mitotic poison? Is there any advantage of it?
(i) Draw a neat labeled diagram to show the metaphase stage of mitosis in an animal cell having ‘6’ chromosome.
(ii) How many daughter cells are formed at the end of mitosis and at the end of meiosis?
(iii) With reference to cell division explain the following terms:
(Chromatid, Centromere, Haploid).
(iv) Name the type of cell division that occurs during:
1. Growth of shoot 2. Formation of pollen grains.
3. Repair of worn out tissues.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
Describe the structure of sex chromosomes with the help of labelled diagram.
The region of the chromosome where the spindle fibres get attached during cell division ______
The number of chromosomes found in human beings is ______.
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 |
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
Read the following statements and select the correct option.
Statement I: The densely packed transcriptionally active, light staining region of chromatin is known as 'Heterochromatin'.
Statement II: The loosely packed, dark staining transcriptionally inactive region of chromatin is known as 'Euchromatin'.
