BIOLOGY HIGH SCHOOL

Which of the following is caused by a dominant allele?A. Colorblindness
B.Cystic Fibrosis
C.Huntington's Disease
D.Sickle Cell Disease

Answers

Answer 1
Answer: D. sickle cell disease

Related Questions

Red-green colorblindness in humans is a sex-linked trait. If a woman with normal vision, whose father was colorblind, married a man whose mother was colorblind, what would be the probability of their first child being a colorblind girl?(A) 0 percent (B) 12.5 percent (C) 25 percent (D) 50 percent (E) 100 percent
According to the big bang theory, how did the universe begin? What had to happen before atoms could form?
Compare and contrast autotrophs and heterotrophs
What is produced as a result of mitosis?A. Two cells, each containing half the number of chromosomes of the original cellB. Two cells, each containing the same number of chromosomes as the original cellC. Four cells, each containing the same number of chromosomes as the original cellD. Four cells, each containing half the number of chromosomes of the original cell
______ is a nitrogenous waste that animals must either eliminate immediately or convert to a less toxic compound

A 38-kilogram child roller skates on a circular track with a radius of 24 m. Her velocity is 6.0 m/s. What centripetal force does she experience?-0.16 N
-0.38 N
-57 N
-580 N

Answers

The answer is.57N.


Centripetal force (F) is a force that makes a body move around a circular curve. The unit of force is N (N = kg * m/s²).

It can be represented as:

F = (m* v^(2) )/(r)


where:
m - mass
v - velocity
r - radius of the curve

We have:
m = 38 kg
v = 6 m/s
r = 24 m

We need centripetal force:
N = ?


If:

F = (m* v^(2) )/(r)

Then:

F = (38 kg* (6 m/s)^(2) )/(24 m)

F = (38* 36 )/(24)kg*m/s^(2)

F = 57N


Therefore, centripetal force child experiences during skating on 

a circular track is 57 N.

In order to solve the problem presented above you will simply need to use the formula shown below. Please see attachment. Now all we have to do is simply replace the variables with the information that the problem gives us. If we do that we will get the following:


F = m*v²/r

F = 38*6²/r

F = 38*36/24

F = 57 Newtons


I hope it helps, Regards.

describe the impact of a primary disturbance on an ecosystem and how the ecosystem recovers by succession

Answers

In an ecosystem, when foreign factors such as unnecessary growth or degree of a particular object exceeds the amount needed this causes a disruption on the process of balance in an ecosystem. This is mainly caused by natural calamities and is further forced at a maximum level by human-made pollution. 

Because prokaryotes do not have many specific structures, they _____. a. cannot survive in most environments b. cannot move through their environments c. rely on other organisms for basic life functions. d. do not have many specific functions.

Answers

Since prokaryotes do not have many specialized structures, they do not have many specialized functions. Therefore, the correct option is D.

Simpler organisms known as prokaryotes lack a true nucleus and membrane-bound organelles. Compared to eukaryotic cells, they do not have as many specialized structures. Prokaryotes are highly successful and diverse organisms that, despite their simplicity, can be found in a wide variety of habitats. They have developed a variety of adaptations and processes that enable them to thrive and live in a variety of settings.

Prokaryotes are important to nutrient cycling, food chains, and many ecological processes. Despite having a relatively simple cellular structure, they can perform various essential living activities such as metabolism, reproduction, and response to environmental stimuli.

Therefore, the correct option is D.

Learn more about Prokaryotes, here:

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Answer:

D

Explanation:

Quizlet

. Because prokaryotes do not have many specific structures, they _____.

do not have many specific functions

Which of the following statements about signal deactivation is false?A. Hormone response systems respond to very small changes in hormone concentration.

B. Second messengers are short-lived because cytoplasmic enzymes convert them to their inactive forms.

C. When G proteins hydrolyze GTP to GDP, they become inactive and halt production of second messengers

D. Phosphatases terminate phosphorylation cascades by adding phosphate groups to proteins in the phosphorylation cascade.

Answers

The statement- "Phosphatases terminate phosphorylation cascades by adding phosphate groups to proteins in the phosphorylation cascade." is false. option D is correct.

In a phosphorylation cascade, protein kinases, the phosphorylate proteins and protein phosphatases dephosphorylate them.

For a phosphorylation cascade, the source of phosphate is ATP (adenosine triphosphate). In a phosphorylation cascade, a phosphate group is transferred from ATP to a protein, which activates or deactivates the protein, depending on the specific cascade.

This  process in which phosphate group is transferred from ATP to protein is carried out by enzymes which are known as protein kinases.

Thus, option D is correct.

To know more about phosphorylation here

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Answer:Phosphates terminate phosphorylation cascades by adding phosphate groups to proteins in the phosphorylation cascade.

Explanation:

Which statement describes a function of thehormone estrogen?
(1) It regulates the secretion of digestive
enzymes.
(2) It promotes sperm production in males.
(3) It influences the development of adult sex
characteristics.
(4) It maintains blood sugar levels.

Answers

(3) It influences the development of adult sex

A female loggerhead turtle was fitted with a tracking device. The data showed the turtle spending all of May, June, July and August offshore of Melbourne Beach, Florida. What would be the most logical explanation for this? she was lost she was waiting for the temperatures to cool off she was mating and laying eggs she was eating a lot of algae

Answers

Well, it could possibly be, "She was maiting and laying eggs" Because,
If it was maiting, it will stay in the same place... And especially if it layed eggs, the mother will stay with her eggs, until they hatch... 
So, thats the only logical explanation... :)
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Hope this helped! :)
Any more questions, please feel free to ask :)
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