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2 years ago

What are the steps of DNA Replication in order?

Biology

1 answer:

slega [8]2 years ago

6 0

Explanation:

1) The enzyme helicase catalyses the unwinding of the two DNA strands by disrupting the hydrogen bonds between complementary base pairs.

2) Single-stranded binding proteins attach to the DNA strands to stabilise them and prevent them from joining back together.

3) The enzyme primase catalyses the addition of a short primer consisting of RNA nulceotides to the DNA strand. This serves as an 'anchor' DNA polymerase to initiate replication.

4) The enzyme DNA polymerase synthesizes a new DNA strand by incorporating DNA nucleotides complementary to the existing strand. DNA polymerase activity only occurs in the 5' ---> 3' direction.

5) The enzyme ligase catalyses the formation of hydrogen bonds between the two new pairs of DNA strands, and seals any breakages in the sugar-phosphate backbone.

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During photosynthesis, light energy is converted to the energy in chemical bonds. What also happens according to the predictions

BigorU [14]

Answer:

chemical energy is converted into light

Explanation:

The process by which green plants and some other organisms use sunlight to say to synthesize foods from carbon dioxide and water. It transforms light energy into chemical energy during photosynthesis.

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2 years ago

For a gene with a dominant allele T and recessive allele t, what proportion of the offspring from a TTxTt are expected to be hom

kiruha [24]

Homozygous being (TT): 50%

Heterozygous being (Tt): 50%

Hetero- different

Homo- the same

7 0

2 years ago

What is the diploid of the zygote produced by fertilization—haploid or diploid?

nasty-shy [4]

Answer:

"Haploid" refers to any cell that has 23 chromosomes (half of the total 46). "Gametes" are specifically sex cells that have 23 chromosomes. "Diploid" refers to any cell that has all 46 chromosomes. "Zygote" is the result of two gamete (haploid) cells fusing, and becoming a diploid cell.

hope this helps!!:)

Explanation:

6 0

2 years ago

Read 2 more answers

Which structure best makes Bermudagrass successful in preventing soil erosion

valentina_108 [34]

Bermuda grass is successful in preventing soil erosion because the roots of the Bermuda grass can grow deep and it can reach 6 feet deep more on its surface. Also when the Bermuda grass is damaged it can grow back quickly.

7 0

2 years ago

Due to the presence of mycolic acids in the cell wall of Mycobacterium spp., the ________ staining procedure can be used as a di

UNO [17]

The question is incomplete as it does not have the option which are:

-acid-fast

-DAPI

-lipo

-Gram

Answer:

Acid-fast staining

Explanation:

Acid-fast staining is the technique used to stain and identify the species of the mycobacterium.

During the acid-fast staining, the carbolfuchsin stain is used to color the bacteria as carbolfuchsin solubilizes the lipid of the bacterial wall and the pink stain enters the cell. When these cells are treated with the methylene blue counterstain, the mycobacterium due to the presence of thick cell wall does not allow the entry of the methylene blue as a result of which they appear red o pink.

Thus, acid-fast staining is correct.

6 0

3 years ago