The actual patterns of dna variation in humans show that african populations contain:

1 answer:

5 0

The actual patterns of DNA variation in humans reveal that those from African populations also contain almost all of the common DNA found in other races such as Asians, Europeans, and other novel variants.

African populations were shown to contain alleles (genetic variations) not present in non-African populations but nearly all of the alleles common in non-African populations are present in African populations. Thus, although externally, different races may present various physical characteristics, our genes dictate that we are more similar than we actually think/believe.

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Describe bio diversity in various places on earth HELP PLEASE!! ‼️

zmey [24]

Answer:

Bio Diversity in simplistic words is basically all life that is on earth (plants and animals) and their habitats and communities.

Explanation:

Amazonia is one of the richest ecosystems on earth, a lot of places in the tropics also shows a lot of bio diversity.

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Atom A has an atomic number of 19 and mass number of 40. Atom B has an atomic number of 20 and a mass number of 40. Which of the

Lostsunrise [7]

The Correct answer is not shown. The correct answer would have to say Atom A has one proton than Atom B because in the question it says Atom A has an atomic number of 19 and Atom B has an atomic number of 20.

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Answer:

A feline skeletal muscle cell undergoes cell division, resulting in two feline skeletal muscle cells.

Explanation:

We are looking for a parent cell that gives rise to daughter cells with identical genetic information.

In simpler words, we are looking for something that makes 'clones' of itself.

In this statement (second option), the parent and daughters are all feline skeletal muscle cells.

A feline skeletal muscle cell undergoes cell division, resulting in two feline skeletal muscle cells.

Other incorrect choices: (All having to do with reproduction).

A child has brown eyes; one of its biological parents has green eyes, and the other has brown eyes.

This situation has two parents, each with a different trait. The child takes one of the parent's trait. The parents did not make a 'clone' of themselves.

A human sperm fuses with a human egg cell, resulting in the development of a new human.

The parents don't make 'clones' of themselves. The sperm did not make more sperm. The egg did not make more egg cells.

A long-stemmed plant reproduces with a short-stemmed plant, and the offspring are all long-stemmed.

The offspring plant only took the trait from one of it's parents. Also, whole plants are not individual cells.

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The answer is (D)

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Reusing , reusing plastic bags can be helpful for the environment

Recycling , can be used to convert plastic into other useful substance , which is an advantage for the environment.

Incinerating is the process of burning waste materials , due to this , there is a smoke emission which is very harmful for the environment.

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2 years ago

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