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3 years ago

The characteristic that results from a monohybrid cross is the _____ trait.

1 answer:

4 0

The answer is dominant.

A monohybrid cross involves organisms that are heterozygous for only one character. In autosomal dominant traits, the phenotype is present if both copies of the dominant allele (A) are present (homozygous individuals AA) or only one copy of the dominant allele is present (heterozygous individuals Aa). Thus, the characteristic that results from a monohybrid cross is the dominant trait.

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If the concentration of salt in the fluid surrounding cells decreases and the concentration of other solutes remains constant?

svetoff [14.1K]

Answer:

The cell will swell.

Explanation:

The cells react distinctly when placed in different solutions like hypertonic, isotonic and hypotonic solutions. In the mentioned question, that is, in the fluid surrounding the cells, the concentration of salt reduces, which makes the solution hypotonic. Hypotonic solution exhibit high water potential and low solute concentration.

This makes the water move from the hypotonic solution to the inside of the cell as the osmotic movement occurs from high solvent concentration to low solvent concentration, thus, swelling of the cell takes place.

7 0

4 years ago

9. In guinea pigs, rough coat is dominant (R) to smooth coat (r) and black coat (B) is dominant to white coat (b). A rough black

lisabon 2012 [21]

Answer:

the genotype of the parent guinea pigs are as follows:

RrBb (rough, black) and Rrbb (rough, white)

Explanation:

Since the phenotype of smooth coat is present in the offspring, the parent genotype cannot have RR alleles for their coat. Similarly, the rough, black parent cannot have BB alleles in its genotype because that will not yield a white coat color in its offspring.

After making the dihybdrid cross, the probability obtained for each phenotype is given below:

rough black: $\frac{3}{8}$

rough white: $\frac{3}{8}$

smooth black: $\frac{1}{8}$

smooth white: $\frac{1}{8}$

Hope that answers the question, have a great day!

3 0

3 years ago

The destruction of salt marshes will directly harm each organism except

soldier1979 [14.2K]

The best answer to the question: "The destruction of salt marshes will directly harm each organism except" ... is Algae. Algae blooms are the biggest outcome of salt marsh destructions, which starve the water of oxygen making it uninhabitable, as the algae grows, it covers the surface of the water and harms almost every organism part of that ecosystem. So I would say algae.

5 0

4 years ago

Which of the following is an example of point-source pollution?

kodGreya [7K]

Answer: D. Acid from abandoned mines

Explanation:

Point source pollution can be define as the pollution that can be caused by a pollutant whose source of origin is known. As the source of origin is known the path of the pollutant can be traced back to it's origin hence, the pollution can be controlled.

Among the options given, D. Acid from abandoned mines. is the correct option this is because of the fact that the source of origin of the pollutant is known that is abandoned mines.

6 0

3 years ago

Read 2 more answers

Pea flowers may be purple (P) or white (p). Pea seeds may be round (R) or wrinkled (r). What proportion of the offspring from th

Mumz [18]

When crossing alleles for color, you get
25% pp
50% Pp
25% PP
White flowers are recessive, so there is a 1/4 chance

And when crossing alleles for shape you get
25% rr
50% Rr
25% RR
Wrinkled seeds are recessive so there is a 1/4 chance

Since you are looking for white flowers AND wrinkled seeds, you need to multiply 1/4 x 1/4, giving you a 1/16 chance that the offspring will have these two traits

7 0

3 years ago