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प्रश्न
Humans have 46 chromosomes. Their sperms and eggs will have ______ chromosomes each.
उत्तर
Humans have 46 chromosomes. Their sperms and eggs will have 23 chromosomes each.
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संबंधित प्रश्न
Synthesis phase in the cell cycle is called so, because of the synthesis of more:
A. RNA
B. RNA and proteins
C. DNA
D. Glucose
What is the number of chromosomes in the gametes of human beings?
The Chromatin material is formed forms of ______.
The term “chromosomes” literally means ______.
What are genes?
Match the events given in column A with the phase in mitotic cell division in column B.
| Column ‘A’ | Column ‘B’ | ||
| 1. | Chromosomes get arranged in a horizontal plane at the equator. |
a. | Anaphase |
| 2. | Daughter chromosomes move to the opposite poles of a spindle |
b. | Prophase |
| 3. | Chromosomes become visible as fine, long threads. |
c. | Telophase |
| 4. | Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. |
d. | Metaphase |
Fill in the blank
The _______ (s) are surrounded by radiating rays called aster
Choose the correct answer:
Centromere is related to ________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Write a sentence of the following:
Sheath
Choose the correct answer:
Chromosomes are thin and thread like at __________
State how does meiosis maintains chromosome number in a species.
Complete the following sentence with appropriate word :
The pairing of homologous chromosomes is called _______.
Name the following:
Pair of genes responsible for a particular characteristic.
The region of the chromosome where the spindle fibres get attached during cell division ______
The thin thread-like structures found in the nucleus of each cell are called ______.
Distinguish between the following pair:
Karyotype and Karyokinesis
