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schepotkina [342]
3 years ago
10

Which is not a characteristic of amniotic sac

Biology
1 answer:
Vikentia [17]3 years ago
8 0
<span>is there suppose to be an A) B) C) D)?</span>
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A BbGg x bbgg cross yields a phenotypic ratio of approximately 5 black eyes, green skin : 5 orange eyes, white skin : 1 black ey
kifflom [539]

Answer:

D.Mendel's law of independent assortment is being violated.

Explanation:

According to Mendel in his law of independent assortment, the allele of one gene gets sorted into gametes independently of the allele of another gene. He discovered this when he performed a cross involving two characters i.e. dihybrid cross, which he obtained a F2 phenotypic ratio of 9:3:3:1. This ratio is only possible if each allele of each gene is represented in each gamete i.e. a dominant allele of the first gene is equally likely possible to be contained with a dominant or recessive allele in the second gene.

If this occurs according to the Mendel's law of independent assortment, a total of four possible combinations of gametes should be produced by each parent organism. When this 4 gametes are crossed in a punnet square, a total of 16 offsprings will be possible.

However, in this case, a total of 12 offsprings were produced, depicting that the alleles did not separate independently of one another to produce four possible gametes.

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3 years ago
The bird fossil Archaeopteryx is a species linking _____ and birds. humans fish dinosaurs none of the above
Aleonysh [2.5K]
The bird fossil Archaeopteryx is a species linking dinosaurs and birds.
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tankabanditka [31]

Answe. No rocks on the Earth r:

Explanation:

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2 years ago
Ecology that focuses on dynamic changes occurring in one species is _____ ecology.
guajiro [1.7K]

The answer is population ecology.  The purpose of this field is to research how a particular group interrelates with its surroundings to gauge how long it can continue living in a certain place.  It is also used in the study of population dynamics.

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3 years ago
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Which is a good example of genetic variation that could lead to adaptive evolution?
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Explanation:

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