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kykrilka [37]
3 years ago
11

A parent with the blood type A (genotype AO) and a parent with blood type B (genotype BO) have children with blood types A, B, a

nd AB. What type of inheritance pattern is shown by the child with type AB blood and why?
Biology
1 answer:
garik1379 [7]3 years ago
4 0

Answer:

Co-dominance because he expresses both of the alleles simultaneously

Explanation:

The ABO blood group system is used by humans. This blood group type is controlled by multiple alleles. Alleles A and B are both dominant over allele O but are co-dominant. Co-dominance is a type of inheritance pattern in which two alleles of a gene both express themselves i.e. neither is recessive.

This is the case of this family whose parents have a genotype of AO (blood type A) and BO (blood type B) respectively. The children have blood types A, B, and AB. However, the child with genotype AB possesses both the A and B allele, which are both expressed in his blood group (phenotype), hence, it can be said that the child is exhibiting CO-DOMINANCE for the blood group trait.

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Answer: STOP you can get banned

6 0
3 years ago
Humans are dependent on a functioning biosphere and other ecological systems for survival. true or false.
kvv77 [185]

The statement is - True.

The humans, as advanced and developed they may be, can not function and survive without the proper functioning of the biosphere, hydrosphere, atmosphere, geosphere, cryosphere. All of those spheres are crucial in defining the life conditions on our planet, and the human kind, as all other living organisms, is heavily dependent upon them.

Unfortunately, the humans have been interfering a lot in the functioning of this systems, and make it harder and harder for them to function properly, and the interfering with the ecological systems is extremely dangerous as it can have a catastrophic consequences.

6 0
3 years ago
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Suppose two students were experimenting with yeast to study cellular respiration. One student found glucose to be the most effic
Anika [276]
The correct option is D. Organisms work best at their optimum temperature and pH, above and below these temperature they will not be able to function as expected. It is possible that the students above use different temperature and pH when they were carrying out their experiments, this will result in different efficiency rate by the yeasts.
5 0
4 years ago
Merle is a marking pattern in canine coats that appears as a marbling of color in a solid coat. the merle gene displays incomple
SCORPION-xisa [38]

Answer:

100% merle with long coats.

Explanation:

<em>All the offspring produced from the cross would be merle with long coats.</em>

<u>From the illustration:</u>

Merle gene is represented by the genotype cmcs.

fgf5 gene determines the coat phenotype. Let the gene be represented by the allele A. A determines long coat traits and it is dominant over its alternate form, b, which determines short coat trait.

Now, two merle (cmcs) dogs were mated. One is true-breeding for long coat (AA) while the other is true breeding for short coat (aa).

cmcsAA   x   cmcsaa

Progeny genotype = cmcsAa

cmcsAa = merle with long coat.

<em>Since </em><em>A</em><em> is dominant over </em><em>a,</em><em> all the progeny from the cross will be merle with long coat.</em>

6 0
3 years ago
There are amphibians that are even larger than bullfrogs. Which of the following could explain how such a large amphibium could
Cloud [144]

Answer:

a. different shape (e.g. flat or ribbon shaped).

d. larger internal surface area of the lungs.

Explanation:

Amphibians are cold blooded animals. They have a low rate of metabolism . Amphibians are located most where there is water or in moist environment because of their skin and how important it is to keep their skin moist.

Amphibians breathe through their skin and this can be called cutaneous respiration. Their lungs are not well developed therefore they undergo a very slow diffusion of oxygen through their blood.

For Amphibians that are larger than bull frogs, they obtain a very sufficient rate of diffusion of gases due to the following reasons:

a. Internal surface area of the lungs: Amphibians that are larger than bull frogs tend to have a more developed respiratory organs which means there lungs have a larger surface area and they are well developed.

b. They have a different body shape: Amphibians larger than bull frogs could have a flat or ribbon shape and their body shapes make it easier for respiratory gases like oxygen to permeate or enter their skin easily.

5 0
3 years ago
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