Which one of the following statements regarding selfing is correct
A. It improves heterozygosity
B. It does not have any effect on heterozygosity
C. It reduces heterozygosity
D. None of these
Answer: Option C
Solution(By Examveda Team)
Selfing reduces heterozygosity.Selfing (self-pollination) is the ultimate form of inbreeding or mating among close relatives. It can create yield loss when inbreeding depression, defined as a lower survival and reproduction of inbred relative to outbred progeny, is present.
Selfing increases homozygosity and reduces heterozygosity at a rate of 0.50 per generation. Increased homozygosity can uncover recessive deleterious variants and lead to inbreeding depression unless it is countered by the loss of these variants by genetic purging.
Related Questions on Genetics and Plant Breeding
Genetic code was discovered by
A. Khorana and Methaei
B. Flemming and Methaei
C. Holley, Nirenberg and Khorana
D. Holley and Nirenberg
Progeny of breeder seed is referred to as
A. Breeder seed
B. Nucleus seed
C. Foundation seed
D. Certified seed
Molecular basis of organ differentiation depends on the modulation in transcription by
A. RNA pol
B. Transcription factor
C. Anticodon
D. All of the above
The phenomenon of linkage was first observed by
A. Bateson and Punnet
B. Nilson
C. Hugo de Vries
D. Mendel
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