All categories

3 years ago

What are immortal cell lines and why are they important for cell research?

Biology

2 answers:

irga5000 [103]3 years ago

8 0

Answer:

scientists compare unknown cells to known cells. That way they can find out the species of the immortal cell and then find out what they're dealing with.

Explanation:

MAXImum [283]3 years ago

6 0

Explanation:

hope it helps

plss mark me as brainliest

You might be interested in

Which of the following is NOT an argument used against genetically modified food?

Usimov [2.4K]

Answer:

All of these arguments are used.

Explanation:

Genetically modified organisms or GMOs are the organism produced by the alteration or change in their genetic material. These organism are used for the production of recombinant proteins, antibiotics and food products.

The genetic barriers between two species are broken unnaturally. This genetic engineering is against the nature and humans creates the new design of life. The allergic reactions are also caused by these GMOs.

Thus, the correct answer is option (D).

6 0

3 years ago

Explain how plants like spinach contribute to the carbon cycle

Mashutka [201]

Answer:

Plants have a process called photosynthesis that enables them to take carbon dioxide out of the atmosphere and combine it with water.

Explanation:

7 0

4 years ago

A cylinder fits inside a square prism as shown. For every cross section, the ratio of the area of the circle to the area of the

dedylja [7]

Area circle = π*r²

Area square = l²

The side of the square is equal to the diameter of the circle

Area square = D²

A diameter is always twice the radius

Area square = (2r)² = 2²r² = 4r²

So this is the rate:

Area circle/Area square = (π*r²)/(4r²)

Area circle/Area square = π/4

Volume is always Area*h when cross sectional area is a constant

Volume Prism = Area Square*h

Volume Prism = 4r²*h

Volume Cylinder = Area Circle*h

Volume Cylinder = π*r²*h

So far this is option D)

Let’s calculate the rate:

Volume Cylinder/Volume Prism = π*r²*h/4r²*h

Volume Cylinder/Volume Prism = π/4

Volume Cylinder = π/4* Volume Prism

This is also option D)

Now let’s calculate Volume Cylinder from that formula:

Volume Cylinder = π/4* Volume Prism

Volume Cylinder = π/4 *(4r²*h)

This is also option D)

So option D) is correct

7 0

4 years ago

Read 2 more answers

What is the phenotypic ratio of the offspring when a man who has type A blood, and whose mother had type O blood, marries a woma

Vladimir [108]

Answer:

The correct answer is - 2 type A : 1 type AB : 1 type B

Explanation:

The pattern of the inheritance in the ABO blood group system is the example of the multiple alleles and codominance. There are three alleles in this sytem that determines what blood group would be in an indvidual that are; IA, IB, and IO. The allele IO is a recessive allele to both IA, and IB alleles whereas IA and IB are show codominance when present in heterzygous condition.

Genotype of a person with “A” blood group can be IA IO or IA IA but as it is given that the mother of the male with A bglood group is O blood group which means there must be a IO allele would be present in the male too so the genotype would be IAIO.

The genotype of AB blood group mother would be IAIB as shows codominance. so the cross between these woulde be as follows:

IA IO x IA IB

Gametes :

IA IO , and IA IB

IA IO

IA IAIA IAIO

IB IAIB IBIO

phenotypic ratio = 2 A group : 1 AB group : 1 B group

6 0

4 years ago

Alleles for other genetic diseases also provide protection against malaria when only one copy of the allele is present. In what

Ugo [173]

Answer:

The correct answer will be- red blood cells (RBC)

Explanation:

Malaria has proved endemic to the human species as it has killed the humans in large numbers and it has acted as one of the strongest selective force.

The malaria disease has caused the mutation in the genes in the red blood cells which carries the oxygen to different organs of the body. The mutation in the genes causes the circular shape of red blood cell to sickle-shaped cells which carry less oxygen to the organs.

The change in the shape of red blood cell provides resistance against malaria disease but it becomes a problem where malaria is not a problem.

Thus, red blood cells (RBC) is the correct answer.

4 0

3 years ago