Crossing over is the exchange of genetic material between homologous chromosomes during meiosis, which leads to variation in offspring.
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प्रश्न
What is crossing over?
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उत्तर
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संबंधित प्रश्न
Which of the following is NOT an example of connecting link?
- Archaeopteryx
- fchthyostegia
- Seymouria
- Biston betularia
Name the ‘two’ types of maps generated by H.G.P.
Which of the following statement/s are INCORRECT with respect to crossing over?
i. Crossing over produces recombinations of genes by interchanging and exchanging corresponding segments between nonsister chromatids of homologous chromosomes.
ii. Crossing over occurs during zygotene of prophase I of meiosis.
The contrasting pairs of factors in Mendelian crosses are called ______.
Which of the following is suitable for experiment on linkage?
Two crosses between the same pair of genotypes or phenotypes in which the sources of the gametes are reversed in one cross, is known as ______.
Mr. Kapoor has Bb autosomal gene pair and d allele sex-linked. What shall be proportion of Bd in sperms?
After crossing two plants, the progenies are found to be male sterile. This phenomenon is found to be maternally inherited and is due to some genes which are present in ______.
When ‘Aa’ is crossed with ‘aa’, (A is dominant over a)
T. H. Morgan used ______ for his experiments in linkage.
