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Alja [10]
4 years ago
13

The main function fo the placenta is to

Biology
1 answer:
Mariana [72]4 years ago
7 0

Answer:

The organ that supplies oxygen and nutrients to the growing baby

Explanation:

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Two genes, A and B, are located 30 map units apart. A mating between an individual homozygous dominant for both traits and one h
Westkost [7]

Answer:

35%

Explanation:

If two genes are 30 map units apart, 30% of the produced gametes will be recombinant.

A mating between an individual homozygous dominant for both traits (AB/AB) and one homozygous recessive for both traits (ab/ab) is conducted.

The F1 will be heterozygous for both genes: AB/ab.

The F1 progeny is then test-crossed to a homozygous recessive individual:

<h3>AB/ab X ab/ab</h3>

<u>The possible offspring will be:</u>

  • Parental (70%): AB/ab and ab/ab
  • Recombinant (30%): Ab/ab and aB/ab

Since 30% of all the gametes produced by the F1 individual will be recombinant, 70% will be parental. As there are two types of parental gametes, each of them will have a frequency of 35%.

<u>The offspring that will have a dominant phenotype for both traits has the genotype AB/ab with a proportion of 35%.</u>

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3 years ago
How do fronts affect the formation of tornadoes?
Viefleur [7K]

Answer:

the answer is B

Explanation:

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Why are the models of solar systems that you can purchase in stores not to scale?
ale4655 [162]

Planets are massive, so we use models to easily view our solar systems in schools and homes.

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klasskru [66]

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:ADFKL

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ANSWER QUICKLY!!
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Answer: A

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 Because its the main difference between the 2

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