They represent the parent's genotypes.
<span>Hair on the head protects scalp from injury and sunlight
Eyelashes and eyebrows protect eyes
Nostril and ear hairs protect from foreign particles
Help in sensing light touch due to the touch receptors associated with the hair root plexuses.
Hope this helps!</span>
Answer:
The size of a seed in a specific plant is transmitted as a polygenic trait. When crossing between two true-breeding varieties takes place, the heterozygous individuals are obtained in the F1 generation. When these F1 offspring are backcrossed with one of the parents, there will be an increase in the variance. This is due to the fact that the backcross progeny are not uniformly heterozygous at the seed size loci.
Epithelial cells are mainly used for protection; in the urinary tract, these tissue cells are used to protect the bladder from toxic urine. The tissue can also expand to hold larger quantities of urine.
