Ask question

Ask question

All categories

3 years ago

6

A man who carries the gene for sickle cell marries a woman with sickle cell disease. What are the chances of them having 2 child

ren who do not have sickle cell disease?

1 answer:

Zarrin [17]3 years ago

7 0

Answer:

5%

Explanation:

You might be interested in

Describe the most common molecular mechanism for recessively inherited human genetic diseases such as cystic fibrosis.

Marta_Voda [28]

Answer:

Explanation:

cystic fibrosis is an autosomal recessive disorder. When the child receives the defective gene from both of his parents, he suffers from cystic fibrosis. Because his parents are carriers. In recessive genetic disorder, the genes will be expressed when both recessive genes are present in one person. The person suffering from this disease have a lung infection and pancreatic dysfunction.

In this cystic fibrosis, genes are located in chromosome 7. The effective gene is the CFTR gene. The CFTR gene is present in the DNA and by transcription, this forms CFTR protein. This is a channel protein and transports chloride ion.

This CFTR protein transports chloride ions and it makes a balance in the cell membrane. These genes are commonly present in the epithelial cells. Outside the epithelial mucus is present to keep the cells moist.

The epithelium gets a lack of water and chloride due to the defect. Therefore cells need CFTR proteins also. This causes lung infection and pancreatic disorder.

6 0

4 years ago

Summarize how the climate of the Miocene epoch impacted the evolution of hominins

andrezito [222]

Answer with Explanation:

The Miocene epoch was deeply characterized by<em> seasonal conditions</em>, such as having more colder winters in the northern areas.

In the <em>late Miocene</em>,<u> open vegetation system expanded. </u>These included<em> grasslands, woodlands and shrublands.</em> As a result, more primates inhabited the area. Several habitats became diverse from each other, thus allowing the species to adapt, including their locomotion. For example, the species who used to live on trees, turn towards living on land (terrestrial life). Certain animals also came about such as <em>pigs, giraffes, monkeys, etc.</em> Scavenging hominins also scattered. When it comes to hominins, a major type of locomotion evolved called "bipedalism." <u>This allowed the hominins to walk using the lower limbs (two feet).</u>

5 0

3 years ago

According to the opponent color theory, the perception of color is based on the output of _______ cones, each of them an opponen

antoniya [11.8K]

<h2>1. Three cones</h2><h2>2. Two colors</h2>

Explanation:

The opponent process theroy of color vision recommends that our capacity to perceive color is constrained by three receptor complexes with contradicting or opposing activities.

These three receptor complexes are as follows:

Dark white complex.

Blue-yellow complex.

Red-green complex.

You don't see greenish-red because according to the opponent process theory, the opponent cells can just identify each of these colors at a time.

7 0

3 years ago

Plz I need help right away!

KengaRu [80]

Answer:

solve it yourself lazy boy

Explanation:

<3

4 0

3 years ago

Read 2 more answers

The sensation stage of the erotic stimulus pathway theory is similar to the _________ and _________ phases of the epor model.

leva [86]

Hi,

The answer is A.

"The sensation stage of the erotic stimulus pathway theory is similar to the excitement and orgasm phases of the epor model."

Hope this helps!
r3t40

7 0

4 years ago