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Bogdan [553]
4 years ago
8

In a dihybrid cross of two heterozygous individuals you epect a 9:3:3:1 phenotypic ratio in the offspring, but observe a ratio o

f 9:7. What is the most likely explanation?
Biology
1 answer:
rosijanka [135]4 years ago
3 0

Answer:

Epistatic interaction of the two genes

Explanation:

In epistasis, the interaction between genes contradics one another, in essence, one gene masks the  interference with the expression of another gene.  As such any time two different genes contribute and have effects to a single phenotype and their effects are not merely additive, those genes are said to be epistatic.

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In blue-white screening, what do blue colonies represent?
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Answer:

The correct option is : cells containing empty plasmid vectors

Explanation:

The blue-white screen is a technique which involves the rapid identification of the recombinant bacteria in a vector-based molecular cloning experiment. In this method, a DNA ligated vector is inserted in a host cell which is viable for transformation and grown in presence of X-gal.    

The cells that are transformed with the vectors having the recombinant DNA produce the white colonies. Whereas, the cells transformed with empty vector i.e. the non-recombinant plasmids, produce the blue colonies.

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Which statement about sexual reproduction in flowering plants is true
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Answer:

D) Asexual reproduction produces offspring that are genetically identical to the parent.

Explanation:

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5 0
3 years ago
What blood vessels do nutrients pass through in order to reach the body's cells?​
jeka94

Answer:

Artery

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5 0
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hope this helped :)
6 0
3 years ago
Read 2 more answers
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