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inn [45]
3 years ago
10

Will mark brainliest for first answer, and 25 points!!!!!

Biology
1 answer:
Trava [24]3 years ago
7 0

I would say A is correct.

With the abortion situation that is currently going on in the U.S, pro-lifers biggest argument is that by killing an embryo you are killing a fully developed person. These people believe that the embryo shouldn’t be killed because it didn’t give consent, and it has full rights even before being born. Using the same embryo for treating patients most likely triggers the same argument for people.

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A true-breeding plant that produces yellow seeds is crossed with a true-breeding plant that produces green seeds. The F1 plants
nadya68 [22]

Answer:

The phenotypic ratio will be 3:1

Explanation:

As per this question there are two phenotypes for seed color, yellow and green. Both the parents are true breeding that means they are homozygous for this trait. Also, all the F1 plants have yellow seed color which clearly indicates that yellow seed color is a dominant trait while green is recessive trait.

The cross of true breeding plants as mentioned above is depicted as under:

Parents                             YY    x   yy

                                          /   \       /   \

F1 generation                Yy   Yy  Yy   Yy

So, as per the law of dominance because of the presence of Y allele, all these progeny will be yellow in color.

Next, when these F1 plants will be crossed, the result will be as under:

F1 generation                    Yy   x    Yy

                                         /   \         /   \

F2 generation               YY   Yy   Yy   yy

The genotypic ratio of F2 generation is 1:2:1

The phenotypic ratio of F2 generation is 3:1

It simply means that in F2 generation, 3 progeny which have allelic combination YY & Yy will be yellow colored while 1 progeny which has allelic combination yy will have green color.

8 0
3 years ago
What must happen before a chemical reaction can begin? The activation energy must be exceeded. The activation energy must be rea
irina [24]

Explanation:

For any enthalpy change in a chemical reaction, (exothermic/endothermic), the activation energy must be reached so as to break the strong chemical bonds between the reactant molecules.

9 0
3 years ago
Read 2 more answers
The gene responsible for lactose persistence among adults in europe is a _______ gene.
Sergeu [11.5K]
The gene responsible for lactose persistence among adults in Europe is a regulatory gene.
3 0
3 years ago
Na20
dsp73

Answer:

A)2 sodium atom and 1 oxygen atom

7 0
3 years ago
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*Biology* Please help!
fomenos

Answer:

3:1

Explanation:

i hope it will be helpful

5 0
2 years ago
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