Answer:Image result for What best describes the head end of a phospholipid?
A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.”
Explanation:
Simple,
DNA: Deoxyribonucleic Acid
RNA: Ribonucleic Acid
Voltage-gated sodium channels represent the chemical (or molecular<span>) level of structural organization in muscle sarcolemma.
Chemical level of structural organization is the first and the simplest level within the structural hierarchy. It includes the smallest unit of any of elements-atom, which combine to form molecules and macromolecules which also combine to form organelles, the functioning units of a cell. Sodium channels are membrane proteins which means that they are macromolecules.</span>
Answer:
Answer is B. Ensuring early and adequate prenatal care.
Explanation:
Prenatal care can be described as the care, such as information and medical care , given to pregnant women during pregnancy , before delivery.
This is very important , because it prevents complications during pregnancy, which can lead to maternal mortality, and support the birth of healthy children.
Infant mortality is the death of the child at birth or shortly after, while maternal mortality is the death of pregnant women during pregnancy or shortly after delivery.
Therefore, ensuring early and adequate prenatal care is the best factor that must be put in place to address the issue of maternal mortality and infant mortality rate.
Answer:
The correct answer is "C-to-T transition".
Explanation:
When cytosine is hydrolysed or methylated it could result in the formation of an uracil via the deamination of cytosine. The uracil that is formed in the genomic DNA could be repaired by DNA repair pathways, but it could result in the formation of a tyrosine. These series of mutations are known as "C-to-T transition" because it starts with a cytosine and ends with a tyrosine. This kind of somatic mutations are very studied because they had been found in human breast tumors.
