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RoseWind [281]
3 years ago
13

Blood returns to the heart via the _____. a) aorta b) pulmonary arteries c) pulmonary veins d) aorta and pulmonary arteries e) a

orta and pulmonary veins
Biology
2 answers:
barxatty [35]3 years ago
7 0
C.) pulmonary veins
s344n2d4d5 [400]3 years ago
7 0

Answer:

c) pulmonary veins

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In the late 1800s, Mendel predicted the existence of "units of hereditary information" or "factors." What do we call these units
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Genes" is the one among the following choices given in the question that we call these units of hereditary information today. The correct option among all the options that are given in the question is the first option. I hope that this is the answer that you were looking for and the answer has actually come to your desired help.
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  1. An entire rainforest.
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During DNA replication, a complementary strand of DNA is made from each original DNA strand. Thus, if a portion of the original
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GTACCGA

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From the above original strand, the complementary strand will be:

GTACCGA

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3 years ago
What is the answer help me
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Increase exponentially

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The species of toads is being introduced to an environment that doesn't possess any real danger towards them this would end up increasing their population as they are not being killed.

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You want to identify dominant /recessive relationship for skin color for a new frog species that you found in the rain forest. A
noname [10]

Answer:

bright blue trait = recessive

yellow trait = dominant

Explanation:

let the letter B represent the gene for skin colour.

This means that the dominant gene is 'B' while the recessive gene is 'b'

A dominant gene is one that is exhibited phenotypically in the presence of both gene variants (heter0zygous state - Bb) while a recessive gene is only expressed phenotypically when it is in a h0m0zygous state (bb)

In order to find out the genotype of the parents, let us consider each cross one after the other.

1. A bright blue female and a bright blue male produce all blue progeny.

2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny

From statement 2, it can be deduced that the trait for yellow colour is dominant because a cross of the parents exhibiting this trait produces bright blue offsprings too, meaning that the genetic composition of the parents contains the gene that codes for yellow colour. Since these parents show a yellow colour in a heterozygous state, then the trait for yellow colour is dominant.

Therefore, the genotypes of the parents in each case include:

1. A bright blue female and a bright blue male produce all blue progeny. (bb × bb)

2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny (Bb × Bb)

6 0
2 years ago
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