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4 years ago

Which statement represents a fact about the rock cycle?

Biology

1 answer:

pishuonlain [190]4 years ago

8 0

The answer is C . The rock cycle is driven by energy from the sun as well from the interior of Earth.

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A couple without an ancestral history of Tay-Sachs disease (a rare autosomal recessive) have two normal children and an infant a

Bas_tet [7]

Answer:

The probability is 25%.

Explanation:

Let the dominant allele for the disease be 'T' and recessive allele be 't'.

The couple with normal phenotype produces an infant with the Tay Sach's disease.
As the disease is autosomal recessive in nature, it will get expressed in a homozygous recessive condition, that is, when the genotype is : tt.
As the normal parents are producing a diseased offspring, the both parents must be heterozygous dominant (Tt) for the disease allele.
The brother of the husband and the sister of the wife, both having a normal phenotype, can have the following genotypes, TT or Tt.
If either of the individual (brother or sister) has TT genotype and the other has other has either TT or Tt genotype, there is zero probability that they will produce an offspring with the disease.

T T and T T

T TT TT T TT TT

(N) (N) (N) (N)

T TT TT t Tt Tt

(N) (N) (N) (N)

If both the individuals have a Tt genotype, the probability to produce diseased offspring is one-fourth or 25%.

T t

T TT Tt

(N) (N)

t Tt tt

(N) (D)

(N) stands for normal and (D) stands for diseased phenotype.

7 0

4 years ago

A women brings her 5 year-old nephew to you for evaluation of a wart. You feel there are 2 therapeutic options; treat the wart w

ELEN [110]

Answer:

Verify if the aunt has the right to consent for the child, then proceed.

Explanation:

It is very important to know if the aunt has the consent of the child's parents to make a medical decision. This is because the child is a minor and cannot make a decision about whether or not to accept the procedure. Then a responsible adult of the child must sign documents that make clear the knowledge of the implications of the procedure.

3 0

3 years ago

The movement of gases into and out of the lungs is known as

Sunny_sXe [5.5K]

Ventilation is the process which the air moves in and out of the lungs. Diffusion is the movement of gases without the use of energy and or effort by the body. Hope this helps!:)

4 0

3 years ago

Which of the following is a benefit of recreation activities?

9966 [12]

Answer:

C Noise pollution

Explanation:

because organisms create noise.

3 0

3 years ago

Read 2 more answers

What makes an arthropod an arthropod

wolverine [178]

Anthropods have exoskeletons

8 0

3 years ago