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Rzqust [24]
3 years ago
7

Describe the following methods of genetic engineering: gel electrophoresis,

Biology
1 answer:
Sunny_sXe [5.5K]3 years ago
6 0

Gel electrophoresis is a method of genetic analysis which involves seperating segments of DNA based on their size and charge.

It involves cutting DNA with various enzymes, then placing the DNA in an agarose gel. An electrical current is then run through the gel. Because DNA is a polar molecule the DNA segments will travel through the agarose cell as the current is applied. Larger fragments will travel shorter distances than shorter fragments. Two plates with 2 different DNA samples will be conducted and the orientation of the DNA strands will be used to make an analysis by comparing the 2 plates.

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melamori03 [73]
Mitosis produces an exact copy of the original containing the same 46 chromosomes as the original cell

Meiosis produces 4 individual sex cells ( gametes) with only 23 chromosomes in each. This is so when a sperm cell and and egg cell meet the combine to make 46 total chromosomes with genes from each parent
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3 years ago
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what are your bones made up of? please list them all! (if you answer correctly, i will mark branliest!)
zheka24 [161]

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2 years ago
Alternation of generation
Nastasia [14]

Answer:

The answer to this question is given below in this explanation section.

Explanation:

                    "Alternation of generation"

Alternation of generations is the type of life cycle that occurs in those plant  and algae in the archaeologist and the heterokontophyta that have distinct haploid sexual and diploid asexual stages.In these groups a multicellular haploid gametophyte with n chromosomes alternates with a multicellular diploid sporophyte with 2n chromosomes made up of n pairs.A mature sporophyte produces haploid spores by meiosis a process which reduces the number of chromosomes to half from 2n to n.

Two haploid spores germinate and grow into a haploid gametophyte.At maturity ,the gametophyte produces gametes by mitosis which does not alter the number of chromosomes.Two gametes from different organism of the same species fuse to diploid zygote,which develop into a diploid sporophyte . This cycle from gametophyte to sporophyte in the way in which all land plant and many algae undergo sexual reproduction.

8 0
3 years ago
What are the factors that determine the level of harm an introduced chemical has on the environment?
Talja [164]

Answer:

Dosage and form in which the chemical is present are the factors that determine the level of harm of chemical on the environment.

Explanation:

Dosage usually mean amount of chemical. Some chemicals cause harm to the environment in a very low amount and some chemicals damage the environment when the amount is too high, these chemicals are not considered as toxic. Form of chemicals also affects its toxicity. Some chemicals are harmful in one state and beneficial in another state.

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Transcription is the synthesis of
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Answer:

mRNA

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why because the process begins of transcription is

RNA polymerase

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