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Lapatulllka [165]
2 years ago
11

Which characteristic is shared by the least number of organisms?

Biology
2 answers:
Viktor [21]2 years ago
8 0

Answer:

Explanation:

F

postnew [5]2 years ago
6 0

Answer:

Explanation:

whats the answer then?

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Match the time period with the correct layer of fossils (mya = millions of years ago). ITEM BANK: Move to Bottom 175 mya250 mya4
Marrrta [24]

Answer:

0 mya, 175mya, 250mya, 400mya

Explanation:

The substance which highest million year ago should be more in-depth in the soil hence 400mpa should occupy the highest depth below the ground.

3 0
3 years ago
In prokaryotes new mutations accumulate quickly in populations, while in eukaryotes new mutations accumulate much more slowly.
Mnenie [13.5K]

Answer: Option A

Explanation:

In Prokaryotes the the rate of new mutations is much more as compared to the eukaryotes. The rate of accumulation of mutation is slow in case of  eukaryote because their generation is long as compared to prokaryotes.

Prokaryotes have short generation time and large population size which enables them to accumulate the mutation quickly.

The machinery is also not that complex when it comes to prokaryotes. Transduction, conjugation and tranposable elements. So, the changes during these processes leads to mutation in the prokaryotes and can be observed quickly due to their small generation.

6 0
3 years ago
Why do calculated recombination frequencies between pairs of loci that are located far apart underestimate the true genetic dist
den301095 [7]

Answer:

B. As the distance between loci increases, some multiple crossovers go undetected such that the relationship between recombination frequency and map distance ceases to be linear.  

Explanation:

When calculating recombination frequencies, and hence, map distances, we might notice that these distances are not completely additive. They might vary. <em>For example, let us say that we have three genes, A, B, and C, in that order. </em>We calculated that the <em>distance between A and B equals 5.9</em> MU and that <em>B and C are 19.5 MU apart.</em> According to this, we might say that the <em>total distance between A and C is 25.4 MU (5.9 + 19.5). </em>However, after a<em> two-point calculation between A and C, the value equals 23.7 MU. </em>

The recombination frequency between these two genes located in the extremes and far apart underestimate the actual genetic distances between them because there might occur other crossing-overs that were not detected. This is <em>when calculating the distance between A and C, we probably will not detect the occurrence of a double recombinant between them, and hence, we might sub-estimate the real distance.</em>

The relationship between the actual map distance (number of crossing overs) and the recombination frequency between two loci, is not lineal. The farther apart are the two genes, the worse is the distance estimation.  

8 0
3 years ago
In an experimental situation, a student researcher inserts an mRNA molecule into a eukaryotic cell after he has removed its 5' c
Scorpion4ik [409]
I found (D) to be correct
3 0
3 years ago
Jonah observes the Sun through a special filtered telescope during a total solar eclipse. He sees a red ring and a faint white r
rewona [7]
<span>The part of the sun that Jonah is seeing as he observes the sun through a filtered telescope during the total solar eclipse is that the red ring is the chromosphere and the faint white ring that looks like a crown is the corona.</span>
5 0
3 years ago
Read 2 more answers
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