BIOLOGY HIGH SCHOOL

A woman who has blood type A positive has a daughter who is type O positive and a son who is type B negative. Rh positive is a trait that shows simple dominance over Rh negative and is designated by the alleles R and r, respectively. A third gene for the MN blood group has codominant alleles M and N. Which of the following is a possible phenotype for the father?
A) A negative
B) O negative
C) B positive
D) AB negative
E) impossible to determine

Answers

Answer 1
Answer: The answer is C) B positive.

A mother has either AA or AO genotype. Since her daughter has OO genotype, the one O allele is from a father and one is from the mother.  Thus, mother must have allele O. So mother's genotype is AO.

A mother with AO genotype will pass to her son either A or O allele. Since son is type B negative, it could inherit from mother only O allele. Son's genotype is BO. This means that he inherited from the father B allele.

Father has either BO or BB genotype. Since his daughter has OO genotype, she must inherit one O allele from the father. Thus, the father has BO genotype.

Talking of Rh, her son is type B negative. A negative Rh phenotype contains both recessive alleles r, so the mother must have allele r (she is either Rh+ heterozygous, or Rh- homozygous). The same is with father - he  is either Rh+ heterozygous, or Rh- homozygous.

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Animal cells and plant cells both contain cell membranes that surround the outside of the cell. Plant cells have an additional outside layer, the cell wall.Select the statement(s) below that explain(s) why plants have the additional outer layer protection.Select ALL that apply.A. The cell wall solely controls what enters and leaves the cell.
B. The cell wall provides structure for the plant, which allows it to grow up and out to absorb sunlight.
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Answers

Answer:

B

Explanation:

The cell wall provides structure for the plant, which allows it to grow up and out to absorb sunlight.

What type of mutation is the following: ATCGAC to TTCGACa)point
b)insertion
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Answers

Answer:

c) deletion is the type of mutation in the following
The answer is a) point.

In plants that have alternation of generations the haploid spores are made by theA. cotyledon.
B. seed coat.
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Answers

Answer: C. Sporophyte

A sporophyte is a diploid body having two sets of chromosomes. It produces spores through the process of meiosis. These spores are the product of asexual mode of reproduction in plants and the sporophytic phase is the asexual phase in the alteration of generations in plants. The sexual phase is the gametophytic phase. The spores produced are haploid that means they exhibit a single set of chromosomes.  
it is made from the sporophyte

The ______ force is equal to the weight of the fluid displaced by an object. gravitational friction buoyant

Answers

The buoyant force is equal to the weight of the fluid displaced by an object when the object is submerged into a liquid. Gravitational force is the force of gravity, and friction is the force created when two objects rub up against one another when at least one of the objects is in motion. 
This means the liability force of an object is equal to the weight of the fluid displace by a particular object

Which of these animals would be measured to have the most mass

Answers

I think you mean this 
Which of these animals would be measured to have the most mass?an elephant
a goldfish
a dog
a fox 
An elephant would be the logical answer for this question, since it is the biggest (and has therefore the most mass) of the four animals.

Answer:

Which of these animals would be measured to have the most mass?

AN ELEPHANT

a goldfish

a dog

a fox

Explanation:

What does the right hemisphere of the brain control?

Answers

Answer:

The right hemisphere controls the left side of the body and our creativity.

Explanation:

The right hemisphere coordinates the left side of the body, and performs tasks that have do with creativity and the arts.

The left side of the brain is responsible for controlling the right side of the body and controls the way we think logically.

Final answer:

The right hemisphere of the brain primarily controls the left side of the body and is often associated with spatial and nonverbal reasoning. It's important to note, however, that the brain functions as a whole unit and most functions are distributed globally around the cerebrum.

Explanation:

The right hemisphere of the brain primarily controls the left side of the body. It plays a significant role in spatial and nonverbal reasoning, arousal, negative emotions, and pitch perception. Language processing, a task typically associated with the left hemisphere, can cross over to the right hemisphere via the corpus callosum, which bridges the two hemispheres together.

While the left hemisphere tends to be dominant in language functions in about 95% of the population, it must be noted that the brain functions as a whole and most of its functions are globally distributed. Misconceptions of people being 'right-brained' or 'left-brained' oversimplify the complex nature of the cerebral hemispheres.

In certain cases of intractable epilepsy, the corpus callosum is surgically severed as a treatment option, resulting in 'split-brain' patients. These patients highlight the roles of the individual hemispheres as we observe their behaviors and abilities post-surgery.

Learn more about the right hemisphere of the brain here:

brainly.com/question/28478917

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