Sex chromosomes and autosomes make up the chromosomes. Sex chromosomes determine the sex of the organisms while autosomes determine the physical characteristics of the organisms. Although the sex chromosomes only determine the sex of the organism, it has a direct link to certain physical characteristics of an organism i.e., colorblindedness is only common to males.
Answer:
The correct answer is B. Isotopes of an element differ in the number of neutrons.
Explanation:
Isotopes are atoms of the same chemical element, and therefore with the same number of protons, in which the number of neutrons in the atom core differs. According to current models, an atom consists of an atomic nucleus surrounded by a cloud of electrons. The core consists of a number of protons and a number of neutrons. The number of protons determines the atomic number of the element and also the chemical properties. The number of neutrons determines, among other things, the stability of the nucleus and, together with the number of protons, the atomic mass. Two atoms with the same number of protons but a different number of neutrons are called two isotopes of the same element.
Neurotransmitters..........
Answer:
TRUE
Explanation:
BECAUSE ALL OF IT CONTAINS LIQUID IN IT
Answer:
B. Hydrogen bonds
Explanation:
Hydrogen bonds are the weak attractive bonds that are formed between a partially positive hydrogen atom and an electronegative atom carrying a partial negative charge.
The nitrogenous bases of two strands of a DNA double helix are held together by hydrogen bonds. Adenine forms two hydrogen bonds with thymine base while guanine forms three hydrogen bonds with cytosine base.
These hydrogen bonds between the complementary nitrogenous bases of a double helix hold the two strands of DNA together.
