Explanation:
In the given question, the trihybrid cross has been provided for the height trait and it is provided that recessive alleles (aabbcc) contribute 10 cm whereas dominant allele (AABBCC) contribute 22cm.
The height contributed by each dominant allele (A+A+B+B+C+C)= 22cm
The height contributed by each recessive allele (a+a+b+b+c+c)= 10 cm
The dominant genotype is 12 cm taller than recessive genotype which indicates that dominant allele contributes 2 cm.
In trihybrid cross-64 genotype will be formed with these dominant allele based on which the height of the plant will be determined.
The genotype with dominant allele (Height) and F2 progeny are
0 (10cm) - 1/64
1 (12cm)- 6/64
2 (14cm)- 15/64
3 (16 cm)- 20/64
4 (18cm)- 15/64
5 (20 cm)- 6/64
6 (22 cm)- 1/64
Answer: The curvature of the crystalline lens increase
Explanation:
Since accommodation is the ability of the eye lens to change in shape so as to focus on an object. So, when we look at a far-away object, the ciliary muscles relaxes and moves away from the lens making the suspensory ligaments tight, pulling the lens, and causing its crystalline curvature to become thinner (decrease), so that light rays passing through it are bent less enabling them to focus on the retina.
However, the reverse happens when the human eye focus is switched to a near object, such that: ciliary muscles contracts, suspensory ligaments slackens, and crystalline lens becomes more curved (increase)
Thus, the change in accommodation makes the curvature of the crystalline lens to increase
Hi! Do you still need help?
<span>If the genotype is PP then when crossed with pp all the offspring will be Pp and purple.
If the genotype is Pp then when crossed with pp 50% of the offspring wil be Pp (purple) and 50 % will be pp (white).
These results will allow you to see whether the purple is homozygous (PP) or heterozygous (Pp).</span>