When a person is born they get one chromosome from the mom and one from the dad. A female has XX chromosomes a male has XY Cromosomes. So a male would get the Y from the dad and the X from the mom.
Answer: e. swordfish and tilefish
Explanation: Consumption of fish is good to the health of the body as it supplies nutrients to the body. However, some species of fish are to avoided because of the high mercury present in them. Some fishes like the king mackrel, swordfish etc are to be avoided. Methylmercury which is a form of mercury can cause severe damage to the nervous system of pregnant women and their unborn babies.
MRNA - messenger RNA - complementary to DNA, it is formed in the nucleus. Unlike DNA however, it can move outside the nucleus.
tRNA - transfer RNA - a unique structure, at one section there is an anticodon, a series of 3 bases which are complementary to the code embedded on the newly formed mRNA. Additionally, another section has an amino acid attached, this is essential for protein synthesis.
rRNA - ribosomal RNA - forms ribosomes. Ribosomes are essential for protein synthesis. The newly formed mRNA leaves the nucleus and attaches to a ribosome. Upon attachment, the ribosome mediates the formation of a primary structure protein. The tRNA binds to the mRNA forming a codon-anticodon complex, this allows bonds to form between adjoining amino acids (attached to tRNA), this complex moves through the ribosome, which detaches the newly formed amino acid strand - thus forming a primary structure protein.