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3 years ago

What would be expected if a woman with blood type AB has children with a man who has blood type AB?

Biology

2 answers:

Oksi-84 [34.3K]3 years ago

5 0

Their children would have AA,BB, or AB blood types. it is a 25% chance of AA, a 25% chance of BB, and a 50% chance of AB so most likely their child's blood type would be AB.

gulaghasi [49]3 years ago

3 0

One fourth of the kids would have blood type A, one fourth would have blood type B, and one half would have blood type AB.

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"Apo-repressor of trp operon is an inactive form of repressor." Justify this statement. Select one of the options below as your

Ad libitum [116K]

For the problem presented, the answer that would justify this statement is Apo-repressor can only bind to the operator site of trp operon when a tryptophan molecule, which is a co-repressor, binds to it. The correct answer between all the choices given is the first choice or letter A. I am hoping that this answer has satisfied your query about this specific question.

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3 years ago

Read 2 more answers

Food is moved down from the mouth into the stomach through:

andreev551 [17]

Answer:

none of the choices are correct

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3 years ago

2. The ability to taste the chemical PTC is determined by a single gene in humans with the ability to taste given by the dominan

Lerok [7]

Answer a)

T t

T TT Tt

t Tt tt

75% of the children will have the probability of being tasters. 25% will have the probability of being non- tasters.

Answer b)

There will be a 75% chance that their first child or their fourth child will be a taster.

The chances for every child will be the same because alleles assort independently during the time of gamete formation. Hence, the probability remains the same every time.

Answer c)

There will be a 25% chance for the first three offsprings to be non-tasters. 75% chances will be of them being tasters.

This is because the alleles assort independently each time during gamete formation. Hence, the chances will be the same every time.

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3 years ago

It is estimated that every year more than 15 million babies are born too early. The lungs of these premature infants are often i

Triss [41]

Answer:

The development of artificial placentas can be a solution that would allow the survival of premature babies, favoring the complete development of the organs -such as the lungs- that would allow their viability.

Explanation:

The main problem facing a premature newborn - before 30 weeks of gestation - is his inability to breathe, due to an immature respiratory system.

During pregnancy, the mother provides nutrients and oxygen to the fetus through the placenta and the umbilical cord, which in turn receives carbon dioxide and waste products that eliminates the future baby. At birth, the baby should be able to breathe and nourish itself.

Some circumstances can cause premature birth, with the consequences of a fragile baby who may not be able to breathe due to the immaturity of his lungs.

<h3>Question 1: State how an artificial placenta would be of benefit to the lungs of premature infants. </h3>

In the case of a newborn whose lungs are not suitable for breathing, an artificial placenta provides conditions similar to the maternal uterus that allow the complete development of the respiratory system, that is, the formation of the bronchial tubes, bronchioles, pulmonary alveoli, as well as the production of surfactant, a substance that prevents alveolar collapse during breathing.

Knowing that a premature baby cannot return to the mother's womb, it is proposed to extend the period of development by introducing the newborn in a device that simulates the conditions of the uterus and the placenta.

<h3>Question 2: Explain why the lambs’ blood must be filtered as it circulates through the artificial placenta. </h3>

In the artificial placenta, also called biobag, the umbilical cord of the lambs is connected to a gas exchange machine - similar to that of extracorporeal circulation - capable of providing blood, nutrients and oxygen, in addition to eliminating waste products and dioxide carbon

The liquid contained in the biobag has a composition similar to that of the amniotic fluid and provides nutrients to the lamb. External monitors connected to the lamb provide all the necessary information about the vital signs of the developing animal.

<h3>Question 3: State one reason why premature lambs were likely used as model organisms in this study rather than mice.</h3>

Lambs have been chosen as a model to perform studies of artificial placenta because their fetal development is very similar to that of humans although their maximum gestation time is shorter.

In lambs, full gestation lasts up to 22 weeks, and lung development occurs between weeks 15 and 17, while in the human fetus it occurs between weeks 21 and 26. However, the stages of development are quite similar.

Since so far only the use of artificial placentas has been achieved for a maximum of 30 days, the relative rapidity with which lung development occurs in lamb fetuses allows its study, and the results of tests in lambs can be extrapolated to the fetus Human in the future.

Learn more:

Authorization for animal research brainly.com/question/8226295

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3 years ago

Why food must be digested before entering your cells?

S_A_V [24]

Answer:

Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body. Protein must be broken down into amino acids. Starches break down into simple sugars. Fats break down into into fatty acids and glycerol.

plz mark brainliest

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3 years ago