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Vikentia [17]
3 years ago
11

Explain the steps that the scientists probably would have used to restore sight to the dogs

Biology
1 answer:
sasho [114]3 years ago
3 0
Scientists used gene therapy to restore the sight of the dogs who suffer from inherited blindness.

Inherited blindness is identified as retinitis pigmentosa. It is the <span>progressive loss of both the rods and the cones photoreceptors in the retina from the edge of the retina to the centre, leading to worsening tunnel vision caused by the loss of peripheral sight

</span>A human gene that enabled cells in the retina to become sensitive to light is added into the retina cells. The scientists then inject a chemical called "photoswitch" in the eye. It attaches itself to the <span>ion channel protein and enables the full conversion of light into an electrical signal relayed to the brain.</span>
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If a hamster has 22 chromosomes in its somatic cells, how many chromosomes would it have in its gametes
amm1812
Normally a hamster has 44 chromosome in its body but since it’s cut in half which leaves it 22 chromosomes (as stated above) the answer will be 11 gametes
22 divided by 2 = 11

EXPLANATION:
The sperm of the father, when it fuses with the egg, the embryo has 22 chromosomes
To find the number of chromosomes for each gamete, divide the total number by two eggs. The egg and sperm have half of the genetic information for an embryo
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Explanation:

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In garden peas the allele for tall plants () is dominant over the allele for dwarf plants() A true breeding tall plant is bred w
marta [7]

Answer: This is called Monohybrid Experiment

Explanation: Monohybrid Cross

P Generation TT     *   tt

  Tall plants     Dwarf plants

F1 Generation  

T T

t Tt Tt

t Tt Tt

In F1 generation;

There are 100% Tt Genotype and 100% Tall plant Phenotype

F2 Generation

F1   *   F1

( Tt   *   Tt )

T t

T TT Tt

t Tt tt

In F2 Generation;

Genotype

There are 25% TT (homozygous dominant, tall plants).

50% Tt (heterozygous tall plants), and

25% tt (homozygous recessive dwarf plants).

This is how dwarf characteristics reappear in the second generation.

The Phenotype of F2 generation is 3:1  (Tall : Dwarf)

I have attached a document to this answer to facilitate effective understanding if there is anormalities in arrangement the Punnet Square.

Download docx
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3 years ago
Which if the following are folds of mucosa only?
Diano4ka-milaya [45]

Answer: Haustra

Explanation:

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The crust is not magnetic near the ocean ridges
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