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Nookie1986 [14]
3 years ago
7

The donor blood type considered to be universal

Biology
2 answers:
xxMikexx [17]3 years ago
8 0

Answer:

O negative blood

Explanation:

For emergency transfusions, blood group type O negative blood is the variety of blood that has the lowest risk of causing serious reactions for most people who receive it. Because of this, it's sometimes called the universal blood donor type.

HOPE IT HELPS :)

PLEASE MARK IT THE BRAINLIEST!

nexus9112 [7]3 years ago
4 0

Answer:

type O

Explanation:

type O, since it contains no antigens. Type O, negative, to be more speciifc (with negative referring to the Rh factor) however O Negative Is widely considered the universal blood type. It is very important because it potentially be transfused to any patient regardless of their blood type. Especially in emergency situations, when there isn't enough time to determine a patients blood type. A person with type O - is considered to be a universal donor because his blood can be safely received by a person with type A, B, AB, or O.

hope this helped!

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Two fruit flies that are heterozygous for body color and eye color are crossed. Brown body color is dominant to black body color
Debora [2.8K]

Hi!


<h3>Let us assume that the following key:</h3>

<em>Brown Body Color</em> (Dominant) : B

<em>Black Body Color</em> (Recessive) : b

<em>Red Eye Color</em> (Dominant) : R

<em>Brown Eye Color </em>(Recessive) : r


To predict all possible phenotypes for this cross, you need to make a Punnet Square, which makes  it easier to solve dihybrid crosses (crosses involving two different traits).

The concept of this is taking each combination of the traits from the parent (BR, Br, br, bR), and crossing it with such combinations of the other parent.


<em>Refer to the attached picture for clarity.</em>


This cross will  yield a phenotypic ratio of

9 : 3 : 3 : 1

9 Dominant for both traits

3 Dominant for Eye Color, and Recessive for Body Color

3 Dominant for Body Color, and Recessive for Eye Color

1 Recessive for both traits


<h3><u>All Genotypes with Corresponding Phenotype:</u></h3>

BBRR - Brown Body, Red Eyes

BBrR - Brown Body, Red Eyes

BBRr - Brown Body, Red Eyes

bBRR - Brown Body, Red Eyes

BbRR - Brown Body, Red Eyes

BBrr - Brown Body, Brown Eyes

bBrR - Brown Body, Red Eyes

bBRr - Brown Body, Red Eyes

BbrR - Brown Body, Red Eyes

BbRr - Brown Body, Red Eyes

bBrr - Brown Body, Brown Eyes

Bbrr - Brown Body, Brown Eyes

bbRR - Black Body, Red Eyes

bbrR - Black Body, Red Eyes

bbRr - Black Body, Red Eyes

bbrr - Black Body, Brown Eyes


4 0
2 years ago
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A proton (H+) concentration gradient across the inner mitochondrial membrane in eukaryotes or the plasma membrane in bacteria drives this reaction forward by coupling ATP synthesis during cellular respiration to the gradient.

To know more about ATP synthase:

brainly.com/question/12454295

#SPJ4

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Answer:

You're right the answer is C

Explanation: Hope this helps:)

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