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WINSTONCH [101]
2 years ago
5

Certain antibacterial drugs such as trimethoprim and the sulfonamide drugs (e.g., sulfadiazine, sulfamethoxazole) selectively in

hibit the synthesis and function of nucleic acids and certain essential amino acids by impairing the production of ______ in bacterial cells.
Biology
1 answer:
d1i1m1o1n [39]2 years ago
8 0

Answer:

Folic acid

Explanation:

Antibacterial drugs helps fight the bacterial infections. these drugs helps release essential amino acids by impairing the production of folic acids in bacterial cells. Bacteria infection may get severe and hazardous if they are leave untreated.

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The mitotic spindles arise from which cell structure?
Lapatulllka [165]

Answer:

The correct option is : b. centrosome

Explanation:

Centrosome is a cell organelle, which acts as the microbule organizing center and also regulates the cell cycle progression in an eukaryotic cell.

During the prophase stage of the cell cycle, the centrosomes are associated with the membrane of the nucleus. The nuclear membrane ruptures during the mitosis and the interaction of the centrosome nucleated microtubules with the chromosomes leads to the formation of the mitotic spindle.

<u>Therefore, mitotic spindles arise from the centrosome.</u>

5 0
3 years ago
Which of the following describes the process of deflation.
enyata [817]
<span> It is erosion by wind of loose material from flat areas of dry, uncemented sediments such as those occurring in deserts, dry lake beds, floodplains, and glacial outwash plains.
So the answer would be A
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7 0
3 years ago
Read 2 more answers
Colored aleurone in the kernels of corn is due to the dominant allele R. The recessive allele r, when homozygous, produces color
Pie

Answer:

The genes are linked, and the arrangement is coupled (one homolog has both dominant alleles; the other homolog has both recessive alleles).

RY / ry

Explanation:

R_= colored aleurone

rr= colorless aeurone

Y_= green plant

yy= yellow plant

They do a testcross between a plant of unknown genotype and phenotype and a plant that is homozygous recessive for both traits (yr/yr) the following F1 is obtained:

  • 88 Colored, green (RY/ry)
  • 92 colorless, yellow (ry/ry)
  • 8 colorless, green (rY/ry)
  • 12 colored, yellow (Ry/ry)

If the genes assorted independently, all of the possible offspring phenotypes would appear in the same frequency. However, they obtained 2 phenotypes much more abundant that the other two. Since recombination is a rare event during crossing over, when two genes are linked the recombinant gametes are produced less frequently than the parentals.

We can propose that the phenotypes Colored, green (RY) and colorless yellow (ry) are the parental gametes, and the unknown plant has the arrangement RY/ry, with both genes linked.

6 0
3 years ago
Calculate the percentage of the class and North Americans who are heterozygous tasters. Round to the nearest hundredth. Heterozy
Zigmanuir [339]

Answer:

Heterozygous in class data:

⇒ .44

Heterozygous in North America:

⇒ .48

Explanation:

edge 2021

5 0
3 years ago
A small chemical spill in the lab is cleaned up by using paper towels. Where should the dirty paper towels be placed?
Sergio039 [100]
Inside a tightly closed garbage can.
7 0
3 years ago
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