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zubka84 [21]
4 years ago
15

What genotypic ratio is expected in the offspring of this cross

Biology
1 answer:
djverab [1.8K]4 years ago
6 0
The answer is B. 1:2
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This structure is called the epiglottis. This flexible leaf-shaped cartilage serves as a flap that covers the larynx to prevent food and liquids from entering the airway and the lungs. It is open when we breathe which allows air to enter into the larynx.
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A scientist observes a population of single-celled organisms at various temperatures. At extreme high temperatures and extreme l
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A change in temperature affects an enzyme by causing the enzyme to change it's shape.

<h3>what is an enzyme?</h3>

An enzyme is a substance that catalyzes chemical reactions.

  • Temperature is one of the major factors that aid enzymes action.

  • Increase in temperature could increase the rate of enzyme.

  • However, at a very high temperatures, the enzyme can be denatured thereby changing it shape or structure and the enzyme may no longer bind to the substrate or function effectively this will then reduce the rate of chemical reaction.

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This chart is from Dr. Jason from the math forum
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Can y’all help me please <br> “Tell me which number goes with what word “
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Answer:

Adaptation:5

Structure:4

Inherited traits:1

Function:2

Variation:3

Explanation:

6 0
3 years ago
A geneticist discovers an obese mouse in his ca laboratory colony. he breeds this obese mouse with a normal mouse. all the f1 mi
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The first geneticist has identified an obese allele that he or she believes to be recessive. We will define his or her allele as o1 and the normal allele as O1. The obese allele appears to be recessive based on the series of crosses he or she performed.

Cross 1 with possible genotype:  

 Obese (o1o1) × Normal (O1O1)  F1 All normal (O1o1)

Cross 2 with possible genotypes:

 F1 normal (Oo1) × F1 normal (O1o1)  F2 8 normal (O1O1 and O1o1)

       2 obese (o1o1)  

Cross 3 with possible genotypes:

 Obese (o1o1) × Obese (o1o1)  All Obese (o1o1)

 A second geneticist also finds an obese mouse in her colony and performs the same types of crosses, which indicate to her that the obese allele is recessive. We will define her obese allele as o2 and the normal allele as O2.

 The cross of obese mice between the two different laboratories produced only normal mice. These different alleles are both recessive. However, they are located at different gene loci. Essentially, the obese mice from the different labs have separate obesity genes that are independent of one another.

 The likely genotypes of the obese mice are as follows:

Obese mouse 1 (o1o1O2O2) × Obese mouse 2 (O1O1o2o2)  

 F1 All normal (O1o1O2o2)


8 0
4 years ago
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