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77julia77 [94]
3 years ago
13

What are two modes of genetic variation of organisms

Biology
1 answer:
Arada [10]3 years ago
7 0

The genetic variation of organisms has three sources they are mutation, gene flow and sexual reproduction.

Explanation:

Genetic variation are caused by mutation , random mating, random fertilization and recombination between homologous chromosomes during meiosis.

It is a variation in alleles and genes, among the populations. There is a genetic variation within the family of closely- related individuals. If it is a neighborhood there are many families and there is also genetic variation among that group.

An exact genetic copy of the parent organism is produced in asexual reproduction. It only introduces the genetic variation into the population if a random mutation in the organism's DNA is passed on to the offspring.

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77julia77 [94]
<h2>Answer</h2>

The monosaccharides is formed by just bounding of C, H and O.

<h2>Explanation</h2>

Monosaccharides are simplest molecule or unit in the carbohydrates group which united with each other to form di, tri or polysaccharide structure. As these are the simplest unit in carbohydrates, they are only formed by numbers of carbon, oxygen and hydrogen atoms. The number of atoms in the chain of monosaccharides varies with changing required compound. for example in deoxyribose, one of hydrogen is not present in its structure but present in ribose.

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Drag each characteristic to the correct location on the phylogenetic tree. Complete the phylogenetic tree by matching each chara
elena55 [62]

Answer:

<em>The correct characteristics are - tissue, coelom, segmentation, endoskeleton, and backbone from top to bottom boxes. </em>

Explanation:

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3 years ago
Which of the following is used as evidence to show changes in living organisms throughout geologic time?
Vadim26 [7]

I believe your answer would be:

A. Fossils.

Explanation:

Because they are the preserved remains or traces of animals, plants, and other organisms from the past. They're also important evidence for evolution because they show that life on earth was once different from life found on earth today.

Hope I helped, good luck! =)

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I believe that it is D. All of the above.

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