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leva [86]
3 years ago
7

How does polymerase chain reaction make DNA fingerprinting more reliable

Biology
2 answers:
Alisiya [41]3 years ago
4 0

Answer:

it allows scientists to quickly make many copies of DNA.

Explanation:

lisov135 [29]3 years ago
3 0
The polymerase chain reaction makes DNA fingerprinting more reliable because it allows scientists to quickly make many copies of DNA.
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For eye color, the brown allele is dominant over the blue allele. If two parents are heterozygous for eye color, what percentage
vlada-n [284]

So, since the trait is eye color, let's use E to represent the dominant allele (brown) and e to represent the recessive allele (blue).


I've attached a Punnett square, but let me real quick explain how I set it up. We know that both parents are heterozygous, which means that they have one of each allele. So that gave us the two sides. Then I filled in the boxes (I assume you've leaned how to do this, if message me and I can explain it).

Looking at the results we can see that 1/4 of the offspring are EE, 1/2 are Ee, and 1/4 are ee. Since the blue allele (e) is recessive, it'll only be expressed if no dominant brown alleles (E) are present. Therefore, only the ee genotype will exhibit blue eyes. So, 1/4 or 25% of the offspring will have blue eyes.

Hope that helps! If you need clarification or anything feel free to message me :)

7 0
3 years ago
Unequal reproductive success ______.Group of answer choicescan lead to a population being less well adapted to its environmentca
postnew [5]

Answer:

can lead to natural selection

Explanation:

<h2></h2><h2>Unequal reproductive success<em> _can lead to natural selection_____.</em></h2>

This is because if there is unequal reproductive success then one of the organisms is <em>better suited for reproducing, surviving, and passing down their genes to their offspring</em> rather than the organism who is unfit. This is where natural selection comes into play because natural selection is process where <em>i</em><u><em>ndividuals better suited for their environment produce more and have better survivality. </em></u>

So overtime, the organism which is weaker  (in sense of fitness) (here fitness relates to reproduction and survival), will not pass as many genes and won't survive, whereas, individual better suited will, hence in  a way "<u>Nature selected"</u><u> </u>the better fit organism.

4 0
3 years ago
Are plant and animal cell wastes the same?
Afina-wow [57]

Answer:

Well Plant cells have vacuoles-Animal cells have vacuoles also, however, animal vacuoles are much smaller. Both plant and animal vacuoles serve as storage areas for water, nutrients, and wastes.

So I wouldn't say they are exactly the same but they are the same :l

3 0
3 years ago
Read 2 more answers
What is the thermal energy transfer that occurs from the motion of fluid in a liquid or gas
Gre4nikov [31]
I hope this helps. that is caused by the differences in temperature
8 0
4 years ago
As a general rule, it takes people between the ages of 20 and 29 two weeks to adapt to a cardiorespiratory activity workload.
Maru [420]

Answer:

As a general rule, it takes people between the ages of 20 and 29 two weeks to adapt to a cardio-respiratory activity workload.

  • True

Explanation:

  • Cardio-respiratory activities are those activities which are done to provide strength to our heart and lungs. These activities include running, bicycling and swimming.
  • It takes only two weeks for the people of ages between 20 and 29 to make them comfortable in a cardio-respiratory activity.
  • There are four components of the cardio-respiratory activities/ training:
  1. Frequency
  2. Intensity
  3. Time
  4. Type

5 0
4 years ago
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