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2 years ago

A scientist wants to make a DNA fingerprint, and she has used polymerase

Biology

2 answers:

liubo4ka [24]2 years ago

7 0

Answer:

Run gel electrophoresis should be the next step.

Explanation:

In this phase, fragments of the DNA are separated OR segregated based on their sizes. DNA samples are placed in one end of gel and electricity is passed to drag them through the gel. The fragments of DNA are made up of negative charge, that’s why they move across the positive electrode. If this process will continue for long time , DNA will shift off the end of gel. To move through the gel it requires high voltage. If the voltage becomes very high it will lead to melting of gel or smearing of the DNA bands.

kodGreya [7K]2 years ago

6 0

Answer:

use restriction enzymes

Explanation:

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Salmon live in both fresh water and salt water during their lives. they are born in fresh water nut migrate out to marine waters

3241004551 [841]

Answer:

1. adaption

Explanation:

Salmon have special adaptation behavior that allows them to live in both freshwater and saline water during their lives.

Salmons are born in freshwater where they spend few months and then move to saline water. For laying eggs, they again move to freshwater because eggs are unable to survive in saline water due to a process known as osmoregulation.

Moving from freshwater to ocean water, salmon adapt according to the environment for their survival.

Hence, the correct answer is "1. adaption"

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2 years ago

Humans conduct _____.

IrinaK [193]

Hello

Humans conduct internal fertilisation.

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2 years ago

Bill wants to determine his blood type, so he takes a few drops of blood from a puncture wound in his finger and mixes it with v

natita [175]

Answer:

The correct answer is d Bill"s plasma contain B antibodies

Explanation:

As Bill"s plasma contain B antibodies that"s why his blood cells do not aggutinate when mixed with anti B serum.

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2 years ago

What is the skeleton of an embryo made up of?

Ratling [72]

The skeleton is made up of Cartilage

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3 years ago

How old is the earth

Gnoma [55]

Answer:

4.543 billion years

Explanation:

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3 years ago

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