Using the Punnett square that you created in question number 5, what is the probability that the resulting child will be heterozygous for Huntington’s disease ?


A. 25%

B. 50%

C. 75%

D. 100%

Huntington’s disease is an autosomal dominant affection. Parental's genotype FF and ff. Cross: FF x ff. F1) 100% Ff, heterozygous individuals (Option D).

Huntington's disease is caused by a mutation in the gene that codifies the Huntington protein (Htt).

The mutation produces an altered form of the protein leading to the neuron death in certain brain areas.

Huntington's disease characterizes for being,

Question number 5

To produce only individuals with the genotype Ff, the parentals genotypes must be homozygous dominant and recessive. This is,

Cross: The cross is done between one homozygous recessive and one homozygous dominant individual

Parentals)  FF   x   ff

Gametes)  F   F     f   f

Punnett square)    F      F

                    f        Ff       Ff

                    f        Ff       Ff

F1) 100% of the progeny is expected to be heterozygous Hh, expressing Huntingnot's disease.

You can learn more about the Huntingnot's disease at

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Select all of the correct purposes for cells undergoing mitosis

A congenital cataract is a clouding of the lens of the eye that is present from birth. The mode of
inheritance for one type of congenital cataract is from a dominant allele. Suppose a man is
heterozygous for this type of congenital cataract, and a woman does not have cataracts. If these two
individuals have a child, what is the probability that the child will have this type of congenital cataract?
a. 25%
b. 50%
c. 75%
d. 100%

In the southeastern United States, there is a small type of lizard called a fence lizard. They have short legs and live under leaves and dead logs.
Over the last 70 years, fire ants have moved into the lizard's environment. When fire ants sting the lizards on their body, the lizards can die
Scientists have observed that in places with fire ants and lizards living together for a long time, the lizards have longer legs. In places where fire
ants have only been there a short time, the lizards' legs are shorter overall
Fire ants move into a new environment with the lizards. What will most likely happen to the lizard population over the next several years?
A. Some of the lizards would try to develop new traits to avoid the ants, and they would pass on those traits to their
offspring. The other lizards would die
B. All of the lizards would try to develop new traits to avoid the ants. They would all survive and pass on those traits to
their offspring
OC. Due to random mutations, some lizard offspring are born with different traits that help them avoid the fire ants. These
offspring will most likely survive and reproduce, while the lizards born without those traits will die.
Select an answer
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3. If an engine exerts 250N of force and moves an object 6.0 meters, how much work did it do? 06
(1 Point)
O 0.024 J
C
42 J
O 41.6 J
O 1500 J

what is types of tissue ​

Inorganic, crystalline substances found naturally within earth are known as

Merle is a marking pattern in canine coats that appears as a marbling of color in a solid coat. The merle gene displays incomplete dominance.
CSCS individuals display a solid coat
CMCS individuals are merle and show patches of fur with a lighter, mottled effect
CMCM individuals are "double merle" and show patches of fur with much more pronounced lightening
Another gene, FGF5, also influences coat phenotype and determines whether dogs display long or short coats, with short coats being dominant to long coats.
A. Determine the proportion of offspring phenotypes that would result when two merle dogs mate, if one dog is true-breeding for the long-coat trait and the other dog is true-breeding for the short-coat trait.
a. 0
b. 1/16
c. 1/8
d. 3/16
e. 1/4
f. 3/8
g. 1/2
h. 3/4
1. double merle with short coat:___.
2. double merle with long coat:___.
3. merle with short coat:___.
4. merle with long coat:___.
5. solid with short coat:___.
6. solid with long coat:____.
B. Determine the proportion of offspring phenotypes that would result when two merle dogs mate, if both dogs are heterozygous(Ll) for the gene that regulates coal length.
a. 0
b. 1/16
c. 1/8
d. 3/16
e. 1/4
f. 3/8
g. 1/2
h. 3/4
1. double merle with short coat:___.
2. double merle with long coat:___.
3. merle with short coat:___.
4. merle with long coat:___.
5. solid with short coat:___.
6. solid with long coat:____.

When we say that a bulb is fused, what is wrong with the bulb? How can we use it again?​

Which of the following correctly explains the differences between artificial and natural selection?

Question 10
1.25
Perception, thinking, language, problem-solving, and creativity are topics of investigation for those interested in:
O A. Humanistic psychology
ОВ.
Introspection
oc. Cognitive psychology
Structuralism
OD
L A Moving to the next question prevents changes to this answer.
ere to search

Which sequence of events best describes the current theory of the origin of life on Earth?

What are general traits of a specialist species?

In this part you will be answering 2 different questions, Please use a full sentence.

Explain what happens to the enzyme activity of Pepsin as the alkalinity increase.

In humans, normal color perception (N) dominates the expression of color blindness (n), and both of these genes are carried on the X chromosome (XN or Xn). A woman with normal color vision has a color-blind father. Her husband is also color-blind.

a. What is the genotype of the colorblind man? ____
b. What is the genotype of the woman? ______
c. What is the probability of her daughter to be colorblind? __________%
d. What is the probability of her sons to be colorblind? _________%

CAN SOMEONE HELP MEEE eeee

A deleterious recessive allele is one that can be harmful when it is found in its homgous condition, resulting in a poorly fit phenotype. An example of this is the allelefor sickle cell, which results in the condition known as sickle cell anemia when both recessive alleles are inherited. owever, in regions of Afriche proportion of the sickle cell allele is igher than expected, with as much as 15% of the alleles in the population being the recessive, deleteriou rsion. In the African population, there is also a high prevalence of malaria, a disease caused by the parasitic infestation of a plasmodium protozoan in the blood of humans. The recessive allele for sickle cell has been maintained over many generations. Evaluate the graph above and select the claim that supports the high frequency of the recessive allele in these African populations.
A)There is a selective advantage to the aa genotype, as the presence of sickle cell provides a greater fitness in an environment where malaria is common.
B)There is a selective pressure against the aa genotype, but the presence of malaria induces new mutations which generates more alleles within the population.
C)There is directional selection towards the Aa genotype, since aa is often a lethal condition. Non-random mating tends to maintain the recessive allele in the population.
D)There is a selective advantage to the heterozygous (Aa) condition as there is selective pressure against both the AA and aa genotypes. This maintains the recessive allele in the population.

It is said that it is the male who determines the sex of the baby rather than it is the female. From your knowledge of the sex chromosome, is it true?

How can humans reduce
the impact of a storm surge?

What is the correct answer I accidentally clicked echo

What type of genotype does a person with a recessive genetic disorder have?

What do we call the organized steps taken to answer a scientific problem?

Plzzz helpppp

what type of pollination happens when pollen grains from anther are transferred to the stigma of a flower what belongs to the same plant?
A.across-pollination
B.auto-pollination
C.cross-pollination
D.self-pollination​

. It took 500 newtons of force to push a car 4 meters. How much work was done?

The Waldorf family was caught in a fire but escaped. Unfortunately, the father and daughter suffered burns. The father had second-degree burns on his entire chest, abdomen, and both arms, and third-degree burns on his entire left lower extremity. The daughter suffered first-degree burns on her whole head and neck and second-degree burns throughout both lower extremities.

a. What percentage of the father's body was covered by burns?
b. What percentage of the daughter's body received first-degree burns?
c. What part of the daughter's body has both the dermis and epidermis involved?
d. The father experiences a good deal of pain in the area of the chest and abdomen, but little pain in the leg. Why?

If a segment of DNA that contains 500 nitrogen bases contains 100 cytosine nucleotides, how many adenine, guanine, and thymine nucleotides would be present

How humans use Nitrogen and phosphorus to make more food?
A. Dog foods
B. Fuels
C. Fertilizers
D. Cars

What keeps object A in orbit around object B?
The force of gravity between objects A and B.
The force of gravity between objects A and C.
The force of gravity between objects A and E.
The force of gravity between objects B and X.

is x male or female in cell reference

An increase in the rate of evolution in a population will be affected by which scenario?

If a DNA strand contains 12% thymine, it also contains ____

a. 12% A, 38% G, 38% C
b. 12% A, 12% G, 38% C
c. 12% A, 12% G, 12% C
d. 38% A, 12% G, 38% C