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olya-2409 [2.1K]
4 years ago
6

( There are 3 questions )

Biology
1 answer:
PSYCHO15rus [73]4 years ago
5 0
Well question one is D
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In guinea pigs, the allele for rough coat (r) is dominant over the allele for smooth coat (r). a heterozygous guinea pig and a h
jek_recluse [69]
I believe the answer is A. 
6 0
4 years ago
Read 2 more answers
“PKU” is an inherited disease caused by a recessive allele. If a woman and a man are both carriers, where P is the normal allele
user100 [1]

Answer:

Option A, 1/64

Explanation:

The genotype of a carrier female would be Pp

The genotype of a carrier male would be Pp

When these two adults are crossed , the following offspring are produced

Pp x Pp

PP, Pp, Pp, pp

Thus out of four children 3 children have normal phenotype but two are carrier.

So probability of having one normal  child (with genotype PP) is \frac{1}{4}

So the probability of  three normal children is

\frac{1}{4} *\frac{1}{4} *\frac{1}{4} \\= \frac{1}{64}

Hence, option A is correct

6 0
4 years ago
A group of students is reviewing class material on sexually transmitted infections in preparation for a test. The students demon
Illusion [34]

Answer:

The correct answer is a. Human papillomavirus

Explanation:

Human papillomavirus is the most common STI according to the center for disease control and prevention. It can pass from one people to another people from skin contact. They are responsible for causing condylomata( genital warts) in the patients.

The genital HPV infection is mostly caused by direct sexual contact with the infected person. HPV infection later can cause cancers like cervical cancer, genital cancer, throat cancer, etc if not treated properly.

Therefore students demonstrate an understanding of the material when they identify human papillomavirus as a cause of condylomata.

7 0
4 years ago
The spleen and the thymus work together to fight infection. These organs together make up which next level of organization?​
lisabon 2012 [21]

I’m looking for this too, ain’t no way your in collage learning this.

6 0
4 years ago
A fruit fly is classified as a heterotroph, rather than as
Rina8888 [55]

Answer:

C

Explanation:

heterotrophic oragnisms gain energy from other oragnisms and need to break down complex organic molocules to release energy.

3 0
4 years ago
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