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Natalija [7]
3 years ago
5

HELPPPPPPPPPPPPPPPPPPP

Biology
1 answer:
maria [59]3 years ago
4 0
One reason is for safety! in case you get stranded in a body of water you can keep yourself afloat
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Which describes a Mendelian trait?
Lapatulllka [165]
The correct answer is C. (Ik it's correct because I just answered it)
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Explain the process of diffusion using a diagram
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Process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
6 0
4 years ago
Hint:think about the direction of movement caused by stress
Shkiper50 [21]

Answer:

Compression is a reverse fault, tension is normal fault and shear is strike slip fault.

Explanation:

Compression is a reverse fault, tension is normal fault and shear is strike slip fault. Reverse fault is opposite of normal fault which occurs due to the stress of compression on an object in which both object come close together. Due to tension stress, rocks pulling apart from each other, produces a normal fault. Shear is strike slip fault because in strike-slip fault, the two blocks slide over one another

4 0
3 years ago
2. True or false: a polio virus needs a host cell to replicate *
marin [14]

Answer:

true

Explanation:

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3 0
3 years ago
I WILL GIVE BRAINLIEST!!!
Nesterboy [21]

Answer:

25%

Explanation:

When looking at a pedigree remember that:

  • squares are males
  • circles are females
  • the solid colored figure represents an individual affected by a disease
  • the empty figure represents a healthy individual

Let us assign the symbol X⁺ to represent the dominant allele linked to the X-chromosome and expressing healthiness, and X⁻ to represent the recessive allele expressing the dissease.

According to this pedigree

  • I1 is a man affected by the disease, YX⁻
  • I2 is a healthy woman X⁺X⁻
  • we can see that among the progeny (generation II) there are two individuals affected (a boy and a girl) and one healthy girl. This means that the mother I2 is heterozygous for the trait.

So, having their genotypes we can know what are the probabilities of getting a son with DMD

Parentals)    YX⁻     x     X⁺X⁻  

Gametes)   Y     X⁻      X⁺     X⁻

Punnett square)

                        X⁺             X⁻

            X⁻      X⁺X⁻         X⁻X⁻    

            Y        X⁺Y           X⁻Y

F1)

  • The probabilities of getting a healthy daughter X⁺X⁻ are 25%
  • The probabilities of getting a healthy son X⁺Y are 25%
  • The probabilities of getting a daughter with DMD X⁻X⁻ are 25%
  • The probabilities of getting a son with DMD X⁻Y are 25%
7 0
3 years ago
Read 2 more answers
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