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Question
Name the following:
The number of chromosomes present in human gametes.
Solution
23
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RELATED QUESTIONS
Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong
Centrosome.Cell wall, Cell membrane, Large vacuoles
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 |
Humans have 46 chromosomes. Their sperms and eggs will have ______ chromosomes each.
Choose the correct answer:
Centromere is related to ________
Choose the correct answer:
Chromosomes appear at equator in ____________
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Chromosomes number is halved in _____________
Choose the correct answer:
Chromosomes number is halved in ____________
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.
Identify the stages of meiosven below and label them.
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Duplicated chromosomes are joined at a point termed ______.
State the Location: Chromosomes
Complete the following sentence with appropriate word:
The chromosomal theory of inheritance was proposed by ____________in 1902.
Long answer type question.
Describe the different types of chromosomes.
Identify the odd one:-
Describe the structure of sex chromosomes with the help of labelled diagram.
The loss of one or more chromosomes in ploidy is called ______.
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?
