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e-lub [12.9K]
3 years ago
15

What is meant by the term epistasis? Distinguish between epistasis and dominance. Do not use examples in answering this question

.
Biology
1 answer:
Sunny_sXe [5.5K]3 years ago
7 0

Answer:

Epistasis is a phenomenon in Genetics in which mutations on one gene locus are dependent on the mutations on some other genes locus. In other words, the expression of a phenotype of one gene is dependent on the presence or absence of mutations on other gene.

Dominance is phenomenon in genes in which a particular genotype masks the expression of alternative genotype and expresses itself due to complete takeover over other.

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Which of the following regarding the Ames test is true?
sveticcg [70]

Answer:

Option (2).

Explanation:

Ames test is used to identify the mutageneicity of the compound. The bacteria are treated with chemicals in the nutritive environment to determine whether the substance can acts as a mutagen or not.

The bacteria that can restore the biosyntheic activity in the environment can be considered as mutagen. The mutant bacteria can be easily identified in the Ames test.

Thus, the correct answer is option (2).

8 0
3 years ago
What properties of semiconductors make them useful in electronic devices
Natali [406]
The property of semiconductors that makes them most useful for constructing electronic devices is that their conductivity<span> may easily be modified by introducing </span>impurities<span> into their </span>crystal lattice<span>. The process of adding </span>controlled impurities<span> to a semiconductor is known as </span>doping<span>.</span>
8 0
2 years ago
List 4 ways in which you can decrease your chances of catching the flu or cold
shutvik [7]
Hi there!

#1 Washing you’re hands after touching anything that may be dirty, or even just using the restroom.

#2 Disinfecting door nobs, handles, desks and things you may touch on a daily basis.

#3 Stay away from those you may think are sick.

#4 Having those around you remember to cover their mouths and noses while sneezing.

Remember to do this using the pit of you’re elbows NOT you’re hands. This can spread germs more easily.

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6 0
3 years ago
Read 2 more answers
Evaporites are chemical sedimentary rocks that form from the crystals that remain after water evaporation. Borax and gypsum are
givi [52]

Answer: Increase in compactness of the material.

Explanation:

Evaporites are the sedimentary rocks that are formed by the sediments and brines of the materials being degraded or withered from the parent and pre-existing rocks. The water is also lost from the withered material due to evaporation. The borax and gypsum also lose water to become evaporites and the increase in compactness due to loss of water molecules and increase in intramolecular forces between solid substances in the rock helps in sedimentation of the rock.

3 0
3 years ago
What bond holds each amino acid together to make a protein?
Naddik [55]

Answer:

PEPTIDE BOND.

Explanation:

Amino acids can link with each other through a peptide bond to form a protein or polypeptide .

this is a condensation reaction that involves the elimination of water molecule.i.e a H2O molecule is produced in this reaction.

the peptide linkage occurs when the OH group of acidic side of one amino acid reacts with the H-atom of the other amino acid and C-N link to form a bond called a PEPTIDE BOND.

5 0
3 years ago
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