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प्रश्न
Give appropriate biological or technical terms for the following :
The condition in which a pair of chromosomes carries similar alleles of a particular character.
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उत्तर
Homozygous
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संबंधित प्रश्न
Correct the following statement if there is any mistake:
If there are 46 chromosomes in a cell, there will be 23 chromatin fibres inside the nucleus during interphase.
Given below is a schematic diagram of a portion of DNA.
- How many strands are shown in the diagram?
- How many nucleotides have been shown in each strand?
- Name the parts numbered 1, 2, 3, 4 and 5 respectively.
- Name the DNA unit constituted by the parts 1, 2, 3 collectively.
Mention the contribution of the scientist given below in the study of chromosome:
Balbiani
Mention the contribution of the scientist given below in the study of chromosome:
Waldeyer
What are chromosomes?
Give a reason for the following:
Gametes must be produced by meiosis for sexual reproduction.
Identify the stages of meiosven below and label them.
Explain the Term Leptotene
Explain the Term Chromosomes
Give Technical Terms
The stage when sister chromosomes separate from their paired condition.
Give Technical Terms
The phase of meiosis at which homologous chromosomes are separated.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Chromosomes other than sex-chromosomes are autonomous.
Multiple Choice Question:
The period between two successive mitotic divisions is
Name the following:
Pairs of chromosomes, present in human egg cells.
Name the following:
The diploid number for cell of man.
Define euploidy.
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?
Identify the TRUE statements with respect to aneuploidy.
- When the chromosome number is not the exact multiple of the haploid set, it is described as aneuploidy.
- Aneuploidy is only addition of one or more chromosome(s) to the total number of chromosomes in a cell.
- Aneuploidy is further classified as hypoploidy and hyperploidy.
Define Aneuploidy.
