It produces air which is essential and the main reason plants and such are needed
The two new strands are different from each other ,both of them have only one strand from the original DNA and the other strand is complementary . eg if a strand has the following base pairs .. AACCGGT ( consider this as the strands)
TTGGCCA
now they are going to be seperated AACCGGT TTGGCCA
TTGGCCT AACCGGT
as u can see the two NEW strands formed are similar but NOT IDENTICAL to each other .
Answer:
Half of the gametes carry one allele of a chromosome, and the other half carry the other allele.Then, fertilization of an egg by a sperm creates a new individual that now possesses two factors for each trait, just like the parents.
Explanation:
The female gamete is called ova which bear 'XX' chromosome and the male gamete is called as sperm that contain 'XY' chromosome.
Fertilization means the fusion of male gamete with the female gamete, which occurs at the ampulla of fallopian tube.This causes formation of zygote which bear haploid cells.
During fertilization, the sperm is capacitated and is attracted towards progesterone which contain CatSper receptor and helps in increase intracellular calcium level.
The tail of sperm disintegrates after the entry of sperm towards the cytoplasm and cortical reaction takes place.Zygote formation takes place after fusion of perm with the ova.
The sperm undergo capacitation that increase the motility and membrane destabilization occurs.
The correct order is:
1. Neutral
2. Harmful
3. Beneficial
Neutral mutations have no effect on organism and the majority of mutations are neutral
Harmful mutations (or deleterious) may cause genetic disorders and those mutation decreases the fitness of the organism.
Beneficial mutations (or advantageous) increases the fitness of the organism and may become more common through natural selection.
