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klasskru [66]
4 years ago
5

Inversion of DNA sequences within chromosomes is a common process in evolution. The following gene arrangements in a particular

chromosome are found in four different species.
1st sequence STUVWX
2nd sequence UVXTSW
3rd sequence UVWSTX
4th sequence SWVUTX
1. Assuming that the arrangement in 1 is the original arrangement, in what evolutionary order did the four species arise, such that there is only one inversion between each species. (Place 1st sequence first in your ordering.)
Biology
1 answer:
irga5000 [103]4 years ago
7 0

Answer:

2, 3, 4, 1

Explanation:

Inversion of DNA sequences refers to the rearrangement of the sequences where a segment is reversed end to end.

For instance in order for the gene of species to have the sequence STUVWX

The order of evolution will be

  • sequence UVXTSW  will be the first sequence

When XTSW segment is inverted WSTX

  • sequence UVWSTX  will be the result of the inversion.

section UVWS is inverted to  SWVU

  • sequence SWVUTX is formed.

when WVUT undergoes inversion to TUVW

  • It becomes the original arrangement of STUVWX .
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What would happen if a cell transcribed and translated a gene’s intron by mistake?
wariber [46]

An intron is a non-coding region of DNA. During alternative splicing, introns are removed.

  • During eukaryotic transcription, a fragment of DNA (e.g., a gene) is used as a template to synthesize a complementary RNA sequence, usually a precursor mRNA (pre-mRNA).

  • Subsequently, this pre-mRNA is processed by a mechanism called alternative splicing in order to produce a mature mRNA which is then used as template to synthesize a protein by a process called translation.

  • During alternative splicing, non-coding regions of a gene called 'introns' are removed, where coding regions called 'exons' are spliced back together.

  • If a cell transcribed and translated a gene’s intron by mistake, then additional amino acids would be inserted into the protein and therefore the resulting protein will be longer than normal.

Learn more in:

brainly.com/question/7156796?referrer=searchResults

6 0
3 years ago
I need an hypothisis on How does temperature change affect surface tension?
Dafna1 [17]

Hypothesis: I believe an increase in temperature would lead to a decrease in surface tension.

Here's why: As the temperature increases, the molecular interaction between the liquids molecules becomes weaker because the hydrogen bond is the main factor for association between two molecules. It is a very weak bond to begin with, so when the temperature increases, it just further weakens it.

4 0
4 years ago
Students observe woodchucks in their area. In the summer, students observe that woodchucks eat a lot of plants. In the winter,
andriy [413]

Answer:

The correct answer is - B. Woodchucks hibernate to survive the winter.

Explanation:

Many mammals such as groundhog or also known as woodchucks hibernate during winter in order to survive winter. Hibernation is the process or state of minimal activity during a particular time of the year characterized by low body temperature, slow heart rate, and low metabolic rate.

Woodchucks are become less active and remain in their burrow and seen very little during the winter and stay like this till late winter or early spring.

4 0
3 years ago
In tilman's experiments with diatoms, what was the outcome when the two species competed for silica?
vlada-n [284]
<span>When two different species are competing for a resource in a contained situation, the result is the extinction of the one species or the other.</span>
5 0
3 years ago
Answer correctly - 50POINTS!!!!
Dahasolnce [82]

Answer:

1) option A - 5' TAG CTG GTA 3'

2) Option C - regulates which materials enter and leave the cell

3) option B - heredity information

Explanation:

For question 1) The complimentary strand will read in opposite direction 5' to 3', and will have each base replaced by its specific base pair:

Adenine (A) replaced by Thymine (T)

Guanine (G) replaced by Cytosine (C)

Thus, the complimentary strand of 3' ATC GAC CAT 5' read as 5' TAG CTG GTA 3'

For question 2)

Cell membrane is a flexible membrane made up of proteins and lipids, and is role is to

- select the materials absorbed by the cell

- protects the cell

For question 3)

DNA stores hereditary information along its sequence in form of genes, that are passed down to offsprings, and determine their traits/behavior

8 0
3 years ago
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