<span>The biggest difference between prokaryotes and eukaryotes is that eukaryote has a nucleus. They also have other membrane structures called organelles.</span>
In biology, the study of biosystematics helps scientists understand the evolution of organisms. Without it, they wouldn’t have been able to logically theorize where life came from. In modern biology, biosystematics is used to group, classify, and label organisms based on their genetic makeup and environmental habits.
Answer:
C. On average, 25% of the children are affected by the autosomal recessive disease if both parents are carriers.
Explanation:
A recessive trait is always expressed in homozygous genotype only. To have progeny with recessive traits from two normal parents, both the parents should be heterozygous carriers. For example, two normal parents with genotype "Aa" have 25% of the chances to have a child with homozygous recessive genotype (Aa x Aa = 1/4 AA: 1/2 Aa: 1/4 aa).
An autosomal trait is equally expressed in both males and females. Inbreeding increases the homozygosity and thereby, increases the risk of expression of recessive traits which are otherwise masked in heterozygous genotype.
There are around 640<span> to </span>850 muscles in human body and they can be categorized in three main groups: <span>skeletal, visceral, and cardiac. </span><span>
The muscles that extend the forearm are located </span>posteriorly. These are the muscles located on the back.
