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bonufazy [111]
3 years ago
15

Complete the following statements regarding the steps necessary to copy a DNA sequence during PCR: 1) The two original strands o

f the DNA molecule can be separated by _____. 2) The enzyme _____ "reads" each template strand and adds _____ to make a new strand.
Biology
1 answer:
Genrish500 [490]3 years ago
4 0

Answer:

1. Helicases

2. DNA polymerases, nucleotides

Explanation:

During DNA replication Helicases are the enzymes which separates the two strands of DNA forming replication fork.

DNA polymerase add DNA nucleotides to form new strand. DNA polymerases does not add nucleotide itself instead need a small RNA fragment called primer which bind with the template DNA strand. Once primer bind the DNA polymerase add nucleotides to the new strand.

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Nuclei of atoms that make up a newborn baby were made in the
goldfiish [28.3K]
<span>Nuclei of atoms which make up the newborn baby were made in ancient stars.

Ancient stars exploded many years ago and this is the same nuclei where newborn babies are being made.</span>
8 0
3 years ago
In pea plants, purple flower color, C, is dominant to white flower color, c. The table shows the frequencies of the dominant and
erik [133]

Answer:

generation 1

Explanation:

The allele frequency is a term that represents the frequency that an allele can appear in a given population. This term can help to develop conclusions about the genetic diversity that a region presents in relation to the individuals that compose it.

In relation to the question above, generation 1 had the highest frequency of having one of each allele. This is because this generation presents the maximum frequency of the dominant and recessive alleles in a coherent way, 0.60 and 0.40. However, the other generations showed a steady and progressive decrease in the recessive allele.

7 0
3 years ago
Jamal was cutting the grass and started to sneeze because of the pollen. Which type of medication should he take? antihistamines
drek231 [11]

The correct answer is option A

A person that is having an allergy with pollen grains should take antihistamines.

When there is an allergic reaction in the body then the body releases histamines which evokes immune response.

As a result of this the person starts sneezing, runny nose, hives et cetera.

So, one should take antihistamines to prevent the action of histamines on the body.

4 0
3 years ago
Read 2 more answers
Four importances of roughages​
Tema [17]

Answer:

increases the bulk in stool,decreases constipation,helpful to beneficial bacteria that resides within the gut, naturally rich in vitamins,minerals and antioxidants

Explanation:

hope it helps

7 0
3 years ago
In areas where the walls are frequently washed, conduit should be mounted with a ___ inch air space between the wall and the con
Over [174]

In areas where the walls are frequently washed, conduit should be mounted with a 1/4 inch air space between the wall and the conduit.

Conduits are the structures that are hollow and cylindrical like a pipe, channel or tube through which any material can pass. The material can be electrical wires, gases or even water. Therefore, the functions of conduits is to mediate the transport of materials from one place to another.

These conduits can be rigid or flexible depending upon their use and the material to be transported. Care should be taken when these conduits are embedded inside the wall that they are not very close and in contact with the wall otherwise the conduits may get damaged.

To know more about conduit, here

brainly.com/question/28239111

#SPJ4

7 0
1 year ago
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