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nexus9112 [7]
3 years ago
9

Bacteria provide genetic engineers with __ and __

Biology
1 answer:
exis [7]3 years ago
4 0
<h2>Answer:</h2>

Bacteria provide genetic engineers with <u>_vector_ </u>and <u>_host_.</u>

<h3>Explanation:</h3>

Vector are vehicles or carriers which are used to carry the gene of interest. They are usually plasmids which are bacterial circular genome which can replicate independently.

Hence bacterial plasmids are used for the insertion of gene of interest and its transfer to the host cell.

As plasmids is taken from the bacteria, so mostly bacteria is used as the host for the gene of interest.

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1. Your unique genetic identity comes from three different events; crossing over, random alignment, and random fertilization. Ex
svetlana [45]

Answer:

Crossing over and random alignment are the events of meiosis-I that add new gene combinations to the gametes. Random fusion of male and female gametes is called random fertilization.

Explanation:

During the pachytene stage of meiosis-I, part of the chromatids of each of the homologous chromosomes of a bivalent is broken apart and exchanged. This exchange of the genetic material between the members of a bivalent is called crossing over. The recombinant chromatids formed by crossing over have new allele combinations that were otherwise not present in the parental chromatids.

During metaphase I, the homologous pairs are aligned at the cell's equator in a random manner. This means that either the paternal or maternal chromosome of a pair may face one or the other pole of the cell. The arrangement of chromosomes during metaphase-I determines whether the paternal or maternal chromosome of each pair would be distributed to one or the other pole of the cell. This random segregation creates new gene combinations in gametes.

All the gametes have equal chances of getting fused with a gamete from the opposite gender. This is called random fertilization and further adds variations.

5 0
3 years ago
Give two examples of habitats that will go through primary succession.
slega [8]

Answer:

Here are a few examples:

Volcanic eruptions.

Retreat of glaciers.

Flooding accompanied by severe soil erosion.

Landslides.

Nuclear explosions.

Oil spills.

Abandonment of a manmade structure, such as a paved parking lot.

Explanation:

7 0
3 years ago
True or False: Both predator and prey
zubka84 [21]

Answer:

true

Explanation:

4 0
3 years ago
Rna primers must be present on which strand during dna synthesis?
Tanya [424]

Answer:Both on the leading strand and on each okazaki fragments of the lagging strand.

Explanation:

A primer is a short single-stranded RNA nucleotide that initiate DNA synthesis at the replication fork. Because DNA polymerase can not initiate replication on it own short strand of RNA primer synthesized by an enzyme RNA primase is needed to initiate DNA polynucleotide synthesis.

RNA primer is present on both leading and lagging strand.

RNA primer of about 10 nucleotides long are present on the leading strand and on each okazaki fragments on the lagging strand to initiate replication. The RNA primer is removed and replaced by DNA nucleotides by DNA polymerase.

6 0
3 years ago
Put the number by which one you answer
OleMash [197]

Answer:

answer is 2 for both cuz they both have the 2 subscript next to hydrogen

4 0
2 years ago
Read 2 more answers
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