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kykrilka [37]
3 years ago
7

Which of the statements about the relationship between DNA technology and genetic diversity is accurate? a.DNA technology can re

duce genetic diversity by eliminating existing clones. b.DNA technology can reduce genetic diversity by eliminating variant alleles. c.DNA technology can increase genetic diversity by producing more clones. d.DNA technology can increase genetic diversity by producing more variant alleles.
Biology
2 answers:
Airida [17]3 years ago
8 0

Correct answer: D). DNA technology can increase genetic diversity by producing more variant alleles.

The genetic diversity can be increased by the mutation that creates new alleles in the population. The recombinant DNA technology enables the joining of DNA from the two or more than two sources that allow changing the genetic composition of the living organism. The genetic diversity helps the population to adapt to the changing environment.

Hence, the correct answer would be option D.


Maurinko [17]3 years ago
4 0

Answer:

D.

Explanation:

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List three cash crops the europeans wanted the native americans and africans to yield
jeyben [28]

The cash crops are the crops, which has more commercial values as compared to the normal crops. The cash crops are essentially grown for the purpose selling.

The Europeans forced the native Americans and Africans to grow commercial crops, which include cocoa,  peanuts, coffee, sugar,cotton, palm oil, rubber, tea, timber and tobacco. Out of which, tea, cotton and tobacco were the most forced cash crops.

Hence, the correct answer is tea, cotton and tobacco.

5 0
3 years ago
In chickens, comb shape is determined by genes at two loci (R, r and P, p). A walnut comb is produced when at least one dominant
mariarad [96]

Answer:

in the obtained options, there is no dominant gene for the crossed pairs, therefore, no answer would be correct, however, when assigning a dominant character to the P gene, the correct answer would be:

E. Rr pp *rrPp

Explanation:

According to the information obtained we deduce:

Comb shape is produced by R and P

Comb of walnuts with an R or a P

Pink comb: 1 dominant P and R at the first locus and 2 recessive at the next locus

Pea comb: 2 recessive at the start and one dominant in the next position

1 single comb: 2 recessive at both loci

Rr pp × rr Pp will produce from the interbreeding: 2 walnuts, 1 single and 1 pea offspring.

We deduce that for the pink comb the genotype is: Rrpp

and for the pea comb it is rrPp

Rr pp × rr Pp generates crosslinks containing RrPp, rrPp, rrpp as children in a 2: 1: 1 ratio.

4 0
3 years ago
Which of the following is not a function of the integumentary system? *
Marysya12 [62]

Answer:

D(Movement

Explanation:

The integumentary system, which includes the skin, protects the body and regulates temperature/homeostasis. It also eliminates small amounts of waste, but it does not aid in movement directly.

6 0
2 years ago
The atomic number of an atom is the number of _________.
bonufazy [111]

Answer:

B

Explanation:

7 0
3 years ago
Read 2 more answers
Look at the graphs and choose the correct statement describing the relationship between BMR (basal metabolic rate) and body mass
Paladinen [302]

Answer:

Small mammals have lower BMR, but use more calories per kilogram than large mammals.

7 0
3 years ago
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