Answer: option A - Constant in genotype and phenotype
Explanation:
Pan mixia is a situation in which an individual is just as likely to mate with another randomly chosen individual as any other in the population
In a situation as described in the question, sexual reproduction is limited to organisms of the same habitat, thus the genetic variation is reduced to the BAREST MINIMUM.
This results in Constancy in genotype and phenotype
Answer:
25
Explanation:
Let stem length be represented by T and t alleles ( T is dominant over t ) and flower position be represented by A and a alleles ( A is dominant over a ).
A dihybrid cross of heterozygous pea plants will give progeny in following ratio:
TtAa X TtAa :
T_A_ = 9
ttA_ = 3
T_aa = 3
ttaa = 1
So, the ratio will be 9:3:3:1 where dwarf, terminal flower plant (ttaa) will be 1/16.
If 400 seeds are planted, (1/16)*400 = 25 plants will be expected to be dwarf with terminal flowers.
Mendel's Law of Segregation states that every organism has two alleles per trait and that these alleles separate during meiosis, so each gamete gets one allele.
Answer:
A .They result in sudden gene frequency changes.
Explanation: