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vfiekz [6]
3 years ago
13

Non-protein coding DNA in eukaryotes contains repetitive elements that include (select all that apply): Group of answer choices

Pseudo genes. Interspersed, transposon-derived repeats. Segmental duplications. Simple sequence repeats.
Biology
1 answer:
Olegator [25]3 years ago
6 0

Answer:

interspersed, transposon-derived repeats, simple sequence repeats.

Explanation:

In the human genome, not only the protein coding genes are present, in fact these genes make up just a very little portion of the human genome about 1.5-2% of the entire human genome. Repeats make up about 48% of the human genome which is the largest and the rest include, conserved non coding sequences (43.5%), heterochromatin regions etc.  

Some of the repetitive elements includes LINEs, SINEs, DNA fossils tranposoon, Retrovirus like elements. all these are transposable elements which are  mobile DNA sequences that can migrate to different  regions/areas of the genome.

Microsatellites (simple sequence repeats) are tracts of repetitive DNA in which certain DNA motifs are repeated normally 5-50 times.

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adoni [48]

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2 : A

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4 0
3 years ago
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Explain how modern classification is different from linnaeus methods, and why scientists changed it
SCORPION-xisa [38]

The answer is that the criteria of classification change with the improved understanding of organisms around us. During the time of Aristotle, not much was known about the living organisms. So, he classified them as he observed. Plants were classified into herbs, shrubs and trees; very much like what’s taught to a second grade student. Animals as Enaima and Anaima based on the presence or absence of RBCs. After him, Carolus Linnaeus tried his hand over classification. He came up with the 2 kingdom classification: Plants and Animals. He considered only a set of morphological and physiological criteria to decide the kingdom to which an organism belongs. It includes presence of cell wall, mode of nutrition, contractile vacuole, locomotion and others. Based on these criteria, he included widely differing organisms into a single kingdom, for example, fungi, bacteria, algae, and higher plants were included into plant kingdom just because they have cell wall as a common aspect. Then came, Ernst Haeckel, who came with a third kingdom of Protista to include unicellular organisms. Copeland gave a 4 kingdom classification segregating unicellular organisms into 2 separate kingdoms based on their nuclear structure. R.H. Whittaker came next introducing the most accepted 5 kingdom classification system. You should understand one thing that man’s knowledge of classifying organisms improved with the improving technologies available to him, which he exploited to very effective extent. Carl Woese gave the 6 kingdom classification and 3 domain system based on the 16S rRNA sequence.

Our understanding of organisms around us is improving day by day and the system of classification will also change further in pace with the improvement in technology.

I hope this helps! :D]

~ Kana ^^

8 0
3 years ago
Which chromosomal change is represented?
scoray [572]
There are man chemical and physical changes such as geno and pheno.
3 0
3 years ago
How do scientists recognize that a climax community has been reached?
mixer [17]

Answer: D. The succession of community is completed.

Explanation:

A succession can be define as a series of gradual changes that occur in the biotic community of the ecosystem with respect to the changes that occur in the abiotic or non-living factors with respect to time until the ecosystem attains stability.

A climax community is the community that develops in the end of the ecological succession. It is the stable community which does not require any further change to occur. With the development of the climax community the succession completes.

6 0
3 years ago
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Ulleksa [173]

Answer:

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The filter feeders- sponges, chiton-eat floating planktons.

Grazers -Snails,mussels feed on- floating planktons.

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Explanation:

  • The producers are placed at the bottom level in energy pyramid and are prime factor in the aquatic eco system which provides energy and perform photosynthesis with the help of water,sunlight and chlorophyll.
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  • Carnivores are those organisms that feeds on herbivores.

6 0
3 years ago
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