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Anna007 [38]
3 years ago
9

Which DNA fingerprinting technique examines the length variation of DNA repeat sequences in human DNA? variable tandem repeats a

nalysis polymerase chain reaction analysis Y chromosome analysis mitochondrial DNA analysis
Biology
2 answers:
makvit [3.9K]3 years ago
4 0

Answer:

mitochondrial DNA analysis

Explanation:

A DNA fingerprint is a laboratory technique that identifies DNA repeat sequences that produce a pattern specific to that individual. Mitochondrial DNA (mtDNA) exhibits several useful features for human identification and for their use in DNA fingerprinting: 1-doesn't undergo recombination, 2-a high copy number, and 3-matrilineal inheritance (i.e., mtDNA is inherited from the mother). It is for these reasons that mtDNA fingerprint analysis has become very useful for human identification.

ruslelena [56]3 years ago
4 0

Answer:

D. mitochondrial DNA analysis

Explanation:

Took the test, Edge 2020. Mark as brainliest plz

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Choose the sentence that does not describe a structural adaptation. A. An elephant has a long trunk that it uses to reach leaves
Natali5045456 [20]
I believe the answer is B. Structural adaptations are characteristics that change over time. Some animals adjust over the years to live better in their environments, and this is what it was talking about.

Elephants have long trunks to reach leaves they couldn't get to if their trunks were small. Same with the humming bird and the rose bush. They are adapting. However, the dog is only getting a drink. The dog can do that without having to adapt to anything.
3 0
3 years ago
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Which of the following statements accurately describes social entrepreneurs? Group of answer choices Social entrepreneurs are in
RSB [31]

Answer:Social entrepreneurs are those who consider financial, ecological, and social metrics to evaluate their firm's performance

Explanation:

An entrepreneur is a person that is innovative which is ready to take risks to start up a new venture. There are different types of entrepreneur and they include:

- Small Business Entrepreneurship

-Scalable Startup Entrepreneurship

- Large Company Entrepreneurship and

- social Entrepreneurship.

Social entrepreneurs concentrate more on transforming the approaches of modern society for the good of the community and the environment. A good example of a social entrepreneur is Bill gates. Through his foundation, Bill and Melinda Gate foundation, it. provides a framework for businesses to find their own success in the pursuit of helping others.

4 0
3 years ago
Tina used 500 N of force to move a desk. The desk weighed 300 N, and she
larisa86 [58]

Answer:

The correct answer is - C. Multiply 500 by 1.5.

Explanation:

Given:

Force to move a desk = 500 N

weight of desk = 300 N

displacement = 1.5 meters

work done by Tine = ?

Formula:

work done (W) = F*d

where F is the force applied on the desk and d is the displacement of the desk.

Solution:

As the displacement is perpendicular to the weight of the desk, therefore, the work done by weight is zero. The work done to the displacement of the desk would be =

W = F*d

= 500*1.5

= 750 J

Thus, the correct answer would be option C.

6 0
3 years ago
Suppose you have monohybrid flowers in your garden and find that they produce black seeds to brown seeds in the ratio of 3:1. If
Dvinal [7]
Hybrid = having one recessive and one dominant allele
This means that all of the flowers must have the genotype Bb.
Knowing this, let's make a Punnet Square.

\begin{tabular}{ l c } & B \ \ \ \ b\\ B & \boxed{BB}\boxed{Bb} \\ b & \boxed{Bb\ }\boxed{\ bb} \\ \end{tabular}

As you can see, 3 of these are going to have the dominant trait and 1 is going to have the recessive trait. This corresponds to our 3:1 in our question, meaning that the black seeds must be dominant and the brown ones recessive.

Because they are dominant, the genotype for black seeds could be BB <em /><em>or</em> Bb.
4 0
4 years ago
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A specific atom of molybdenum has an atomic number of 42 and a mass number of 96. How many protons are in this atom of molybdenu
Masja [62]

Answer:

42

Explanation:

The mass number of an atom is equal to the number of protons plus the number of neutrons in a nucleus  

This atom Mo-96 has an atomic number of 42 and so has 42 protons in the atom.

7 0
3 years ago
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