All individuals have two alleles for a given trait. according to mendel's law of segregation, these alleles are passed down one each from both mother and father.

they are passed down through gametes from each parent, which are created by the process known as
a) fertilization
b) meiosis
c) mitosis
d) myocin

B) meiosis

Explanation:

Meiosis is a process of cell division in which cells have their chromosome numbers halved and form distinct units due to crossing-over. Through this process plant spores and gametes are formed in animals - eggs and sperm.

As we all know, the egg is the female gamete and the sperm the male. Both the spumatozoa and the egg have half the alleles of each parent that will be passed on to their children.

The sperm has a "pouch" full of digestive enzymes called the acrosome, which helps in fertilization by digesting the egg wall, allowing its entry. When the sperm enters the egg it delivers its DNA, sensing the entry of this genetic material, this mucus that surrounds the once gelatinous egg, stiffens, preventing the entry of other sperm. This is why the egg is fertilized by only one sperm.

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation: