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sveta [45]
3 years ago
14

What happens After each step in a dichotomous key?

Biology
1 answer:
cricket20 [7]3 years ago
6 0
I think the organisms are compared to each other.
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HELLPP! ITS BIOLOGY
larisa [96]

Answer:

So that in a guinea pig cross in the offspring the recessive trait —long hair— can be observed in 25%, the most probable genotype of the parents is heterozygous Ss.

Explanation:

In guinea pigs, for the characteristic<u> hair length, short hair is the dominant allele and long hair is the recessive one</u>.

In order for 25% of the offspring to express the recessive characteristic, the parents must have a recessive genotype, which can be seen in Punnett's Square:

P: <u>Ss X Ss </u>

<em>Alleles     S     s </em>

<em>S             SS   Ss </em>

<em>s             Ss    ss </em>

Where the offspring is:

  • <em>50% Ss with short hair phenotype </em>
  • <em>25% SS with short hair phenotype </em>
  • <em>25% ss whose phenotype would be long hair. </em>

According to this, heterozygous parents for the characteristic long hair in guinea pigs have a 25% chance of having offspring with long hair.

8 0
2 years ago
Which method of heat transfer is due to the transfer of kinetic energy from one molecule to another?
Akimi4 [234]
It would be convection because it isnt having any physical collision which rules out conduction and it is going through mid air which rules out evaporation and radiation
3 0
3 years ago
Read 2 more answers
Is the heme molecule attached to hemoglobin during the primary level or tertiary level of organization?
djyliett [7]

Answer:

Tertiary.

Explanation:

Primary structure of proteins refers to the order of amino acids that make up the protein. The heme is an nonprotein non-amino acid, so it is not involved at this stage.

Tertiary structure of proteins is the overall 3-D folding of the protein (it comes after secondary, which involves folding into a repeated pattern). The heme bonds to its correct position on the hemoglobin during this stage and helps in correct folding.

3 0
3 years ago
Which of the following is NOT an example of a fossil? *
denpristay [2]

Answer: mineral deposits can not be used as an example of fossil

Explanation:in evolution theory, both bones and footprints were used for fossil record

3 0
3 years ago
Which cells contain only one sex chromosome? somatic cells gamete cells hybrid cells autosomal cells
DerKrebs [107]
Gamete Cells. Eggs and sperm are reproductive cells and reproductive cells are called gametes.
4 0
3 years ago
Read 2 more answers
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