3 years ago

Someone plz help me :(

Biology

2 answers:

natita [175]3 years ago

7 0

Answer:

Explanation:

Our body contains chemical energy, which later, when we r running or cycling gets transformed into kinetic and thermal energy

dolphi86 [110]3 years ago

6 0

Answer:

Explanation:

Chemical energy stored in muscles transform to kinetic and heat energy

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Human genetic variation generally is distributed in a continuous range, with varying clusters of frequency. The significance we

sergeinik [125]

Answer:

Human genetic variation generally is distributed in a continuous range, with varying clusters of frequency. The significance we give our variations, the way we perceive them—in fact, whether or not we perceive them at all—is determined by our culture

Explanation:

7 0

3 years ago

In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. If a red-eyed heterozygous f

ladessa [460]

The answer is Rr and rr.

We know:
r - recessive allele
R - dominant allele
RR - dominant homozygote with red eyes
Rr - heterozygote with red eyes (since one dominant allele R can mask recessive allele r)
rr - recessive homozygote with sepia eyes

Heterozygote Rr can give to the offspring either dominant allele R or recessive allele r. Recessive homozygote rr can give to the offspring only recessive allele r (take a look at the uploaded image of Punnett square).
After crossing the parents:
Parents: Rr x rr
Offspring: Rr rr Rr rr

So:
2 out of 4 offspring will be with heterozygous with red eyes Rr: 2/4 = 0.5 = 50%
2 out of 4 offspring will be with homozygous with sepia eyes rr: 2/4 = 0.5 = 50%