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wel
3 years ago
9

Explain how it is possible that a recessive trait, such a o blood or sickle cell anemia, and white fur in tigers can be more pre

valent in a population than the dominant trait.
Biology
1 answer:
MAXImum [283]3 years ago
3 0
A recessive trait inheritance could be more prevalent in a population than the dominant because mutation could occur because the mating does not have a wide variation causing a lethal gene or an autosomal sex link to be easily passed on the offspring
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The gene D controls wing shape in flies and has two alleles: D is wild-type and dominant, and d is recessive and causes flies to
borishaifa [10]

Answer:

10% of progeny would have wild type phenotype

Explanation:

True breeding fly with wild type wings and small eyes: De/De

True breeding fly with downward wings and wild type eyes: dE/dE

Cross between them :  De/De X dE/dE = De/dE ( F1 )

Recombination frequency = 20%

Next cross, De/dE X de/de =

De/de = parental = 40%

dE/de = parental = 40%

DE/de = recombinant = 10%

de/de = recombinant = 10%

The third genotype i.e. one of the recombinant genotypes will have the wild type makeup ( DE/de ) hence 10% of flies would have wild type phenotype.

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3 years ago
Based on fossil evidence about how long ago did the first single-cella’s life from appear on earth
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Why was the evolution of cuticle so important during the evolution of land plants?
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The outer coverings that are tough but, flexible provided protection to the land plants.
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Which is an adaptation that helped plants survive on land?
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Answer:

Formation of cuticles. (A P E X)

Explanation:

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A cross between a plant with red flowers (R = dominant) and a plant with white flowers (r = recessive) yielded 47 plants with re
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Answer:

A. The results are close to a 1:1 ratio of plants with red flowers to plants with white flowers. Therefore, the genotypes of the parents are Rr and rr.

Explanation:

I took the test and got it right.

3 0
3 years ago
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