Answer:
Phosphorylation
Methylation
Explanation:
Histone mobilization deals with the covalent bonding of several functional groups to the free nitrogens in the R-groups of lysine in the N-terminal tail.
DNA transcription can be controlled or altered via 'methylation' on the histones. Methylation is the mode of transferring methyl group to amino group of histone proteins that form the nucleosomes, which result to chromosomes formation through wrapping of DNA double helix around it. Histones methylation can either increase or decrease genes transcription. Chromatin modification is known to stimulate neural pathways that are essential for long memories and learning.
Histones phosphorylation is associated transcriptional activation. It deals with the transfer of phosphate group to amino acids of the proteins. Phosphate group known to be negatively charged, when transferred to amino acids of the histone proteins, it creates a repulsive force with the negatively charged phosphates of the DNA backbone. It can occur in serine, tyrosine and threonine. The enzymes kinases activate phosphorylation, while protein phosphatases remove phosphate groups.
The correct answer is option 1, that is, there is an evolutionary link between the classes.
The study of one kind of proof of evolution is known as embryology, that is, the study of embryos. An embryo refers to an unborn young in its initial stages. Embryos of various distinct types of animals, that is, mammals, reptiles, birds, fishes, etc. seems very identical and it usually becomes tough to differentiate them apart.
Various traits of one kind of animal are observed in the embryo of another kind of animal. This illustrates that the animals are identical and that they are developed identically, signifying that they are associated, have common descendants and that they began the similar, slowly developing distinct traits, however, the fundamental plan for the beginning of the creature remains similar.
Answer:
mitochondria
Explanation:
aerobic is active and energy is produced in the mitochondria so if the mitochondria was damaged it would affect the active transport
Answer: Only eukaryotic organisms have DNA.
The optic canal transmits the optic nerve and ophthalmic artery(option-E).
<h3>What is ophthalmic artery?</h3>
The internal carotid artery's first branch is the ophthalmic artery. It separates right near the cavernous sinus. The orbit, meninges, face, and upper nose are all supplied by the numerous branches that the ophthalmic artery produces. Vision may be compromised if the ophthalmic artery is blocked.
The lacrimal gland, conjunctiva, and eyelids are all supplied by it. In order to supply the posterior uveal tract, the ophthalmic artery releases a number of posterior ciliary arteries that cross the sclera. Being end vessels, the posterior ciliary vessels are susceptible to sudden occlusion, which can result in infarction in the choroid region.
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