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kenny6666 [7]
4 years ago
7

Which is the first medication approved to reduce the risk of human immunodeficiency virus (hiv) infection in unaffected individu

als?
Biology
1 answer:
Alexandra [31]4 years ago
4 0

Food and Drug Administration (FDA) of United States, has approved Truvada (tenofovir disoproxil fumarate), the first drug which reduce the risk of HIV infection in uninfected individuals who may engage in sexual activity with HIV-infected partners. They are at high risk of HIV infection. Truvada is taken daily as a pre-exposure prophylaxis measure, in combination with safer sex practices to reduce the risk of sexually-acquired HIV infection in adults at high risk.

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The functional units of dna that contain the instructions for making one or more proteins are.
natima [27]

Answer:

The functional units of dna that contain the instructions for making one or more proteins are the "Genes".

6 0
3 years ago
A place where two tectonic plates slide laterally past each other is called a_______ boundary and is often associated with _____
olya-2409 [2.1K]

Explanation:

When two tectonic plates slide past each other, the place where they meet is a transform or lateral fault. The San Andreas Fault is one of the best examples of lateral plate motion

4 0
3 years ago
A section of DNA encodes a gene for an enzyme involved in cellular metabolism. If a mutation event occurs that results in the de
Lady_Fox [76]

Answer:

The correct answer would be C. The protein synthesized will contain many erroneous amino acids since the loss of one base will shift the reading of the encoded base sequence.

Deletion mutation that does not occur in the multiple of three bases can results in frame-shift mutation.

It changes the reading frame of nucleotide in DNA. Thus, the reading frame of codons in mRNA would also change.

Consequently, the sequence of amino acids in a polypeptide chain would change or alter. Thus, a protein would contain many erroneous amino acids.

An example of the same is shown below in the image.

4 0
3 years ago
What is the name for the science that studies evolution that oc-
abruzzese [7]

Answer:

D. Population genetics

Population genetics is the study of genetic variation within populations, and involves the examination and modelling of changes in the frequencies of genes and alleles in populations over space and time. ... In natural populations, however, the genetic composition of a population's gene pool may change over time.

Explanation:

microevolution - evolutionary change within a species or small group of organisms, especially over a short period. (Not studying the overall evolution in the population, just a single allele usually) Not it then

macroevolution - Macroevolution in the modern sense is evolution that is guided by selection among interspecific variation, as opposed to selection among intraspecific variation in microevolution (this goes over huge groups of different species) Not it then

gene pool - The gene pool is the set of all genes, or genetic information, in any population, usually of a particular species. (Not the study of evolution in a population) Not that then

So it has to be D

3 0
3 years ago
Read 2 more answers
How does an organism's niche differ from its habitat?
mars1129 [50]

Answer:

An organisms niche is it's role in the ecosystem. This includes what it eats and what it's eaten by, and is usually affected by it's habitat.

An organisms habitat is simply where the organism lives.

6 0
3 years ago
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