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3 years ago

Which statement best explains how two identical copies of a very large molecule can be made during DNA replication?

Biology

2 answers:

Bas_tet [7]3 years ago

6 0

Answer: B. DNA polymerase checks for errors in base pairing as it helps new DNA strands form.

Explanation: DNA polymerase is an enzyme that catalyzes the synthesis of a new DNA strand from a DNA template. This process is known as replication. During replication, DNA polymerase rejects incorrect bases before the phosphodiester bond is formed because it has a 3' -> 5' exonuclease activity that double checks every nucleotide that is added to the growing strand. This check allows the enzyme to remove a newly added mismatched base pair.

choli [55]3 years ago

5 0

Answer:

Explanation:

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Answer:

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What does a fern do?

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Fungi tend to reproduce sexually when nutrients are limited or other conditions are unfavorable,but they reproduce asexually in

zepelin [54]

Answer:

Sexual reproduction produces offspring which are distinct from the parent.This strategy is successful because this reproduction increases genetic variation, which entailsthe odds of some progeny, which are suited to new and challenging conditions.

Explanation:

Sexual reproduction produces genetic variability, as two nucleic unites to produce a new offspring this allows the fungus to adapt to new environments. Sexual reproduction in the fungi consists of three sequential stages plasmogamy, karyogamy, and meiosis.

It involves diploid chromosomes pulled into two daughter cells, each containing an haploid set of chromosome.

Plasmogamy is the fusion of two protoplasts which brings together two compatible haploid nuclei this nuclear types are present in the same cell, but are not yet fused. Karyogamy then leads to the fusion of the haploid nuclei and the formation of a diploid nucleus. The new cell formed by karyogamy is the zygote.

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3 years ago

A period in 24-point font (.) is about 1mm in diameter. SARS-CoV-2 has a diameter of 80 nm. The prefix “milli” means 1000, which

Artist 52 [7]

Answer:

A total of 12,500 SARS-CoV-2 viruses

Explanation:

Consider a trillion against a thousand, there exists a difference of a million, which means a nanometer will be a million times smaller as compared to one millimeter:

see below for a milli divided by nano

1/1000 ÷ 1/1000,000,000 = 1000,000,000 ÷ 1000 = 1000,000

(in reference to the hint given in the question statement)

The question puts one millimeter against 80 nanometers. The calculation for this will be given as follows:

1/1000 ÷ 80/1000,000,000 = 1000,000,000 ÷ 80,000 = 12,500

According to the above working, there are 12,500 SARS-Cov-2 viruses thatg can fit into one period.

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2 years ago