the answer is D) natural selection
Answer:
This diagram depicts the phenomenon of DNA translation in the central dogma of life. Here are the labels
1. <u>RNA strand</u> because it is a sequence of four nucleotide A, G, C, U. It has Uracil, this is why it is RNA. Further, translation takes place when DNA is already transcribed.
2. <u>Ribosome</u> is a machinary for protein formation. This is because it provides right environment to transfer RNA to decode RNA strand into a protein sequence.
3. <u>Amino acid</u>: Each amino acid is carried by a transfer RNA (tRNA). The type of amino acid depends on type of tRNA. All proteins are mostly formed with 20 amino acids and so there are at least 20 tRNA.
4. <u>Polypeptide (protein) chain made up of amino acids</u>: It depicts multiple amino acids, which tRNA carries, and are bonded together through peptide bonds.
5. <u>Transfer RNA (tRNA)</u>: tRNA has a complementary sequence to RNA strand and thus it binds with right sequence. It carry an amino acid which is then bonded to another amino acid amino acid to make a polypeptide chain.
Explanation:
<h3><u>Answer;</u></h3>
Lysosomal proteins are secreted from the cell
<h3><u>Explanation</u>;</h3>
- N-acetylglucosamine phosphotransferase is a golgi-localized enzyme that catalyzes the first step in the synthesis of the mannose 6-phosphate recognition marker on lysosomal acid hydrolases.
- <em><u>The loss of function of this enzyme results in impaired lysosomal targeting of the acid hydrolases and decreased lysosomal degradatio</u></em>n.
- Mannose 6-phosphate receptor sorts lysosomal hydrolases in trans Golgi Network; the first step is the recognition of lysosomal hydrolyses in the Golgi apparatus by N-acetylglucosamine phosphotransferase.
- The enzyme has both the catalytic sites which binds both high mannose N-linked oligosaccharides and UDP-GlcNAc, and recognition site that binds to a signal patch present only on the surface of lysosomal hydrolases.
I think that the complement system is a group of antimicrobial proteins that act together in a cascade fashion. Complement system is a part of the immune system, it has plasma proteins that can be activated directly by pathogens or indirectly by pathogen-bound antibody, leading to a cascade of reactions that occurs on the surface of pathogens and generates the active components that results to various effector functions.
<span>The answer is ‘radiating excess body heat into the
environment’. Vasodilation of cutaneous
blood vessels shunts blood closer to the surface of the skin. This allows dissipation
of heat to the environment. This is also ideal if there is a breeze in the environment
to facilitate this process (the reason why people us fans in hot days). If the
body is unable to shed this heat (maybe because it is too hot in the environment)
then the person may experience heat stroke</span>
