1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Diano4ka-milaya [45]
2 years ago
10

The blood Group of Mother is O. The Blood Group of the Child is B. Man Exonerated If He to Blood Group?​

Biology
1 answer:
aalyn [17]2 years ago
4 0

Answer:

If the mother's blood type is O, and the child's blood type is B, a man would be exonerated from paternity if he has blood type A or O.

Explanation:

In the above case, if a mother has blood type O and her child has blood type B, a man can be exonerated from paternity only if his blood type is A or O, and responsible if he is type B or AB.

The blood type is defined by the presence of surface antigens in the red blood cell, called A and B. The presence of each antigen is determined by a gene present on the parental chromosomes.

  • <em> </em><u><em>Blood type A</em></u><em> corresponds to the presence of gene A, and its genotypic expression can be A/A or A/O. </em>
  • <u><em>Type B blood</em></u><em>, whose genotype is B/B or B/O, is due to the presence of a gene containing the B antigen. </em>
  • <u><em>AB blood</em></u><em> —due to codominance— has one gene for A and another for B, with genotype A/B. </em>
  • <em>Blood type O, characterised by the absence of surface antigens, behaves like a recessive trait, which only manifests itself in the absence of surface antigens A and B. The genotype is O/O. </em>

By making a hypothetical crossing between mother and man, one can observe why he can be exonerated.

<u>Man with blood type O </u>

♂ O|O

♀ O|O

Alleles     O      O

O           O|O   O|O

O           O|O   O|O

The only possibility, in this case, is to have children with type O blood. No chance of children B.

<u>Male with blood type A </u>

♂ A|O

♀ O|O

Alleles     A        O

O            A|O    O|O

O            A|O    O|O

In this case there is a 50% chance that the children will be blood type A and 50% chance that they will be O. No chance of children B.

In the case of a man A|A the result is 100% probability of children A|O, and no probability of children B.

<em>So, a </em><em>man with blood types A (any genotype) and O, can be exonerated from paternity</em><em>, since it is </em><em>impossible for him to have a child of blood type B, when the mother is of blood type O</em>.

You might be interested in
Exponential growth is limited by all the following factors expect
jonny [76]

Answer:

b

Explanation:

In this question, the context for exponential growth is assumed to occur naturally. Because lab experiments are not natural and must happen in well controlled studies, it cannot limit exponential growth.

3 0
3 years ago
In humans, the yolk sac ________. in humans, the yolk sac ________. is the site of origin for blood cells and primordial germ ce
aleksklad [387]

In humans, the yolk sac is the site of origin for blood cells and primordial germ cells. The human yolk sac is a membrane located outside the embryo and it is connected by a tube through the umbilical opening to the embryo's midgut. The yolk sac serves as an early site for the formation of blood and in time, is incorporated into the primitive gut of the embryo.






8 0
3 years ago
Whitch of the following statements are true?
maria [59]

Answer:

All the statements are true except the second i. e. the soil quality in an ecosystem Does not matter as much as soil quantity.

Explanation:

In an ecosystem both quality and quantity of water is very important. If the quality of water is not suitable, that it contains polluted substances so the health of the organism such as fishes and other aquatic animals will adversely affected and sometimes dealth occurs and the ecosystem will be negatively affected.

5 0
3 years ago
if the skeletal muscle cells in your leg are performing lactic acid fermentation to produce the necessary ATP for their proper f
Sonja [21]

Answer:

The O2 gas in uses in Aerobic Respiration and That O2 is performing that process to make ATP for your body and making glucose to function your body

Explanation:

Lactic Acid Fermentation is Anaerobic Respiration which doesn't Involve Oxygen

Sorry if I'm wrong

Hope this helps!

8 0
3 years ago
Explain the environmental impacts potentially faced from global warming.
Serjik [45]
-Melting Icebergs, glaciers, and ice sheets
-sea level rise
-wildfire
3 0
3 years ago
Other questions:
  • Most autotrophs make “food” through the process of
    7·2 answers
  • A plant scientist was hired by a greenhouse operator to devise a way to force iris plants to bloom in the short days of winter.
    13·1 answer
  • An important part of science? Open-mindedness,skepticism,or both.
    10·2 answers
  • If you looked for rna in various parts of thr cell, where would it be found?
    10·2 answers
  • Does mitosis or meiosis occur more frequently in your body, and can you explain
    15·2 answers
  • What would happen if your hypothalamus didn't work properly
    14·1 answer
  • When the herd is moving in direction the handler wants what should the handler do
    6·1 answer
  • This a question that you need to apply knowledge of both the digestive system AND biochemistry. You eat
    5·1 answer
  • What makes the cells of domain Eukarya different from the two prokaryotic domains?
    10·1 answer
  • Which of the following is true? A. point In photosynthesis, plants use glucose, carbon dioxide and water to make oxygen and in c
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!