At the end of meiosis I, the two cells that were formed have 4 chromatids just like mitosis, however, neither has the two identical sets of chromosomes that it would in a diploid cell. Meiosis II is when two cells ender a 2nd meiotic division.
Three roles of the DNA molecule in heritage are in storage, copying and transmitting genes.
A-DNA: It is a right-handed double helix similar to the B-DNA form. ...
B-DNA: This is the most common DNA conformation and is a right-handed helix. ...
Z-DNA: Z-DNA is a left-handed DNA where the double helix winds to the left in a zig-zag pattern.
Answer:
The false statement is C. The hamstrings are prime movers of hip (thigh) flexion and knee (leg) flexion.
Explanation:
The hamstrings are also called ischiosural or simply, femoral. They are the powerful and voluminous musculature that is located in the back of the thigh and that performs its action mainly on the knee, flexing it and also rotating it.
The hamstrings are made up of three muscles: the biceps femoris, semitendinosus and semimembranous. In addition, the tendons are located at the back of the thigh and cross the hip and knee joints. As the hamstrings cross two joints, they have two actions, including knee flexion and hip extension, as well as hyperextension.
Answer and Explanation:
Protein is one of the most important molecules in our organism, being present in the composition of all elements, in addition to participating in several metabolic processes. This importance creates the need to study this molecule, however, to study it it is necessary to know the composition chemistry and the levels of structure it presents.
The chemical composition of proteins is related to amino acids, since protein is formed by them. In this case, we can say that the proteins have the same composition as the amino acids containing carboxylic acid and different amino groups, which is what determines the name and function of the amino acid.
In addition to chemical composition, the structure levels of proteins are extremely important, as they only function at a specific structural level. As for these levels, proteins can have a primary structure (there are more than two amino acids organized in a linear row), a secondary structure (when the primary structure turns into a helix species), a tertiary structure (formed by a more intense folding of the secondary structure providing the appearance of helices and leaves) and quarternary structure (when several tertiary structures are joined, allowing folding at the three-dimensional level. This is the functional structure of the protein).