Answer:
The rule of complimentary base pairing is strictly followed when complimentary stand is synthesized.
Explanation:
During the semi-conservative replication of DNA, the one strand of the original DNA molecule is kept safe and a new strand is synthesized with the help of free nucleotides present there. During the formation of new strand on the original strand, the rule of complimentary base pairing is strictly followed and the nucleotides join to form the new stand according to this rule. Due to this there is less chance that a wrong base pairing will occur and in this way the new stand is formed complimentary to the original strand is free from any mutations.
Ans.
Incomplete dominance is defined as a pattern of inheritance, in which both of the alleles for a specific trait get expressed in offspring (neither allele is dominant or recessive).
It result in appearance of an intermediate, third phenotype or physical trait that shows combination of traits of both alleles.
For example, a cross between red colored and white colored flower of 4' O clock plants results in offspring plants with pink colored flowers
Thus, the correct options are :-
-Traits are neither recessive nor dominant.
-Offspring show an intermediate trait of alleles from the parents.
-Both alleles, one from each parent, get expressed in offspring.
-Incomplete dominance involves the interaction of two alleles.
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Answer: The frequency of brown beetles is 0.32.
Explanation: The frequency of A1 allele is 0.8. As p+q=1, or the sum of dominant and recessive frequencies equals 1 or 100%:
1 - 0.8 = 0.2
In Hardy-Weinberg principle,
2pq represents the frequency of heterozygote individuals, so:
genotype A1A2 = 2*0.8*0.2 = 0.32.
Thus, the frequency of brown beetles (A1A2) in the population is 0.32.
