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Readme [11.4K]
3 years ago
10

Mrs. Smith has blood type A. Her father has blood type A, and her mother has blood type B. If Mr. Smith has blood type AB, what

is the probability that they will have a child with blood type AB?
a-25%
b- 50%
c-100%
d-0%

Biology
2 answers:
koban [17]3 years ago
6 0
The answer would be A. 25%
Rudiy273 years ago
4 0

Answer: The correct answer is-

a-25%

ABO blood group shows multiple allelism that is has more than two alleles. AB alleles show co-dominance and O allele is recessive allele.

As per the information in the question, Mrs. Smith has blood type A, her father has blood type A ( genotype could be AA/AO), and her mother has blood type B ( genotype would be BO only). This means that she has inherited A allele from her father and O allele from her mother to make the blood type A. Thus, genotype of Mrs. Smith would be AO.

Mr. Smith has blood type AB ( that is genotype would be AB).

So, the genotypes of these parents would be-

Mrs. Smith- AO

Mr. Smith- AB

When these parents are crossed, they will have 25% probability of having child with blood type AB.

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how factors such as blood pressure blood volume blood viscosity resistance disease and exercice affect blood flow
schepotkina [342]

Blood is essential for many organisms, such as humans and animals, for its important function of transporting substances (food, oxygen), vitamins, waste (carbon dioxide), hormones, etc. to all tissues and cells of the body.

1) Blood volume

If the blood volume increases ==> the blood flow increases.

2) Viscosity of blood

If we have an increase in blood viscosity ==> we have a decrease in blood flow

3) Peripheral Resistance

If there is an increase in peripheral resistance ==> the blood flow decreases

4) Diameter of blood vessels

If we have an increase in diameter of

blood vessels ==> decreased peripheral resistance ==> increased blood flow

5) Blood pressure

If the blood pressure increases ==> the blood flow increases.

6) In case of diseases

In the case of atherosclerosis or acute coronary syndrome ==> blood flow decreases.

7) Physical excercises:

During physical exercises ==> the heart rate increases ==> the blood flow increases.

3 0
3 years ago
Sort the given molecules into organic and inorganic substances.
Yuki888 [10]

C3H2H4- Imidazole-Organic compound

AlBr3-Aluminium bromide- Inorganic

C6H5F-Fluorobenezene-Organic

Cro3-chromic acid-Inorganic

H2O2-Hydrogen peroxide-Inorganic

C12H22O11-Sucrose- organic

Basically when a compound contains carbon atom in it its said to be organic.

3 0
3 years ago
Read 2 more answers
Yeast cells are typically observed under 40x objective. the total magnification of the specimen is?
gregori [183]

The overall magnification of a microscope is calculated by multiplying the objective lens's magnification by the optical lens' magnification.

However, you must first ascertain the optical lens's magnification power before computing the total magnification.  The ocular lens typically magnifies 10 times.

Find out how much the objective lens can magnify. On the side of the lens is printed the magnification. The value may formerly be 4X, 10X, 40X, or 100X.

Multiplying the ocular lens' magnification power with the objective lens' power yields the compound light microscope's overall magnification. For instance, a 400X total magnification would be achieved with a 10X ocular and a 40X objective. The compound light microscope has a maximum total magnification of 1000X.

Learn more about microscopes here:

brainly.com/question/13520094

#SPJ4

4 0
1 year ago
Why are many bacterial infections more difficult to treat now than they were fifty years ago
ollegr [7]
Bacterial infections were much harder to treat a long time ago because we didn't have the same technology or information that we do now. because we have worked so long on treating different things we have learned what works and what doesnt. the new technology has helped us understand the infection which led to us being able to find medication to treat said infection.
6 0
3 years ago
Read 2 more answers
In the ED, blood is withdrawn from the vein and into a test tube. The packed cell volume (RBCs) is 1.45 ml, and the plasma volum
Yuri [45]

Answer:

<h2>1.45 + 3.55 = 5.0 (total blood volume);  1.45/5.0 × 100 = 29% (low),</h2>

Explanation:

HCT is calculated as:

HCT = Volume of red blood cells / (Volume of red blood cells + volume of plasma) x 100  

1.45 + 3.55 = 5.0 (total blood volume);  1.45/5.0 × 100 = 29% (low), normal range for an adult female HCT  ranges from 38 to 46% (some sources claim 34.9-44.5%).

*for calculating this, one must know two of these three values: packed cell volume, total blood volume, plasma volume.

Total blood volume = Packed cell volume + plasma volume.

4 0
3 years ago
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