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4 years ago

Which process moves water molecules across the membrane of a cell?

Biology

2 answers:

IRINA_888 [86]4 years ago

8 0

Answer:

Osmosis

Explanation:

"a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane."

aev [14]4 years ago

6 0

Answer:

osmosis

Explanation:

-3-

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Hemophilia is a sex-linked recessive trait. A phenotypically normal woman has phenotypically normal parents. However, she has a

vladimir1956 [14]

Answer:

A. parents: Hh and Hh

B. chances of being a carrier: 50%

C. 50%

Explanation:

A. Since hemophilia is a recessive trait, both parents must carry the recessive alelle for it to show through in the child. However, we know both of them are phenotypically normal, meaning a dominant trait (not hemophiliac, H) is masking the recessive trait (hemophiliac, h)

B. The options the woman has when you create a punnet square with her parents genotypes are HH (doesn't have any hemophilia, because hemophilia is recessive, so represented with a lower case h) Hh (there is twice the likeliness she is an Hh since it occurs two times when you combine her parents genotypes. Hh means she is a carrier, but does not have the trait) and hh (meaning she definitely has it). So there is four options, two of which mean carrier, meaning she has a 50% chance of being a carrier.

C. genotypes of the parents:

mom: Hh

dad: hh

when you create their punnet square, you will get two occurrences of Hh and two occurrences of hh. Remember that hh means hemophilia. This means the child has a 50% chance of having hemophilia.

5 0

3 years ago

A region with a variety of organisms like tiger, fish, rabbits, birds, insects, etc.,

IRISSAK [1]

Answer:

Species diversity is the right answer.

Explanation:

It is stated that the region is full of different organisms. An organism is defined as an individual animal, plant, or single-celled life form. All this variety of a region makes an ecosystem so having multiple ecosystems in a specific region is out of hand.

3 0

4 years ago

In foxes, silver-black coat color is governed by a recessive allele (b) and red color by its dominant allele (B), Determine the

MaRussiya [10]

Answer:

a. Genotype ratio= 1/2 BB: 1/2 Bb

Phenotype ratio= All red

b. Genotype ratio= 1/2 Bb: 1/2 bb

Phenotype ratio= 1/2 red: 1/2 silver black

c. Genotype ratio= All Bb

Phenotype ratio= All red

Explanation:

a. pure red x carrier red:

Genotype of parents: pure red (BB) x carrier red (Bb)

Genotype ratio of progeny= 1/2 BB: 1/2 Bb

Phenotype ratio of progeny= All red

b. carrier red x silver-black

Genotype of parents: carrier red (Bb) x silver-black (bb)

Genotype ratio of progeny= 1/2 Bb: 1/2 bb

Phenotype ratio of progeny= 1/2 red: 1/2 silver black

c. pure red x silver black

Genotype of parents: pure red (BB) x silver black (bb)

Genotype ratio of progeny= All Bb

Phenotype ratio of progeny= All red

4 0

3 years ago

Which activity is illustrated in the diagram below? **HINT: you don't need to know what a bryophyte or a protozoan is in order t

grandymaker [24]

Answer:

it's option c

<h2>hope it helps you<3</h2>

3 0

3 years ago

Read 2 more answers

I need help with a b c d and e

ivanzaharov [21]

I can only see a, b, and c, but I know that it’s 4, 3, and 2.

Hope this helps!!!

6 0

3 years ago