Answer:
Explanation:
Adductor muscles are those muscles which pulls the body part away from the midline of the body. It draws the body part to the extremities. These are found in various parts of the body such as human thigh bones such as adductor longus, adductor mugnus and adductor brevis. These muscles in the thigh helps in providing the flexibility and rotation.
In the thumbs there is adductor pollicis. In the toes there is adductor hallucis.
C. proteins-
The cytoskeleton is what provides structural support for a cell, and the cytoskeleton is made out of fibrous proteins.
Hope that helped!
This reaction occurs in the thylakoids of the chloroplast
D the correct answer is d
Answer: a. Genetic recombination (crossing over)
b. Can also be explained in terms of crossing over
c. Non disjunction of homologous chromosomes in meiosis 1
Explanation:
The process that allows for the transfer of both the paternal and maternal materials to is the crossing over process that takes at meiosis 1 changing them to secondary spermatocytes. While they are still primary spermatocytes, they are still diploid cells having both the maternal and paternal chromosomes. But since the spermatozoon is an haploid cell, it is able to retail some of both parents chromosome by the crossing over event which takes place between homologous paternal and maternal chromosomes allowing them to exchange materials. Thus the chromosomal contents of the primary spermatocyte differs from that of the spermatozoon.
C. This can occur as a result of the one of the homologous chromosome pair refusing to separate at meiosis 1 with one gamete containing 4 chromosomes/8 sister chromatids and the second having 2 chromosomes/4 sister chromatids.
