Each cell that are divided will have complete genetic information itself. So both of them will survive.
Option A.
<h3><u>Explanation:</u></h3>
The sperm and the ovum fuse to form a zygote. This zygote then undergoes cleavage divisions to divide into many cells called morula. Now in the two celled stage, if the cells divide away from each other, it gives rise to monozygotic twins or identical twins.
Both the cell contains nucleus and chromosomes or DNA inside the nucleus. So both of them contains genetic information. Thus both of them survives and develops into two identical twins. This may develop into same amniotic sac or different amniotic sac.
Answer:
1. Air warms, becomes less dense, it rises
2. Air cools down, increases density (becomes denser), it sinks
Answer:
DNA tightly coils around proteins and condenses into chromosomes, which fit in the nucleus.
Colder climates give the people longer noses so the air has a good time to warm up before going into the lungs. places with more light or sun had more pigmented skin to protect from the rays and getting burned
Answer:
d. Lysine is replaced by tryptophan (nonpolar)
Explanation:
Amino acid substitutions can have varying affects on the protein function, depending on the specific substitution and the location of the substitution.
If the substitution occurs in an important region, for example an enzyme active site, then the function of the protein could be destroyed.
Additionally, if the substitution replaces the amino acid with a highly different amino acid with different properties (eg. polarity), it could alter the structure and function of the protein.
Replacing lysine (polar) with a tryptophan (non-polar) changes the properties of the amino acid at that location, whereas the other substitutions do not.
