When two independent pure lines AAbb and aaBB of pea with white flowers are crossed, the F1 progeny has purple flowers. Gene A and B link at 20 map unit. The following conclusions were made

A. When an heterozygous individual of the genotype AaBb is test crossed, progenies with purple and white in a ratio of 1:3

B. When an heterozygous individual of the genotype AaBb is test crossed, progenies with purple and white in a ratio of 1:9

C. This is an example of complementary gene action

D. The F2 progeny obtained on selfing shows both pruple and white flower in a ratio of 9:7                                            

Which of the following conclusions are correct?

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#Question id: 2480

#Unit 2. Cellular Organization

The drug taxol acts to:

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#Question id: 3793

#Unit 3. Fundamental Processes

A replicating prokaryotic chromosome has _________ replication forks, and a replicating eukaryotic chromosome has ___________.

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#Question id: 12017

#Unit 10. Ecological Principles

All of the following allow hermaphroditic animal species to avoid inbreeding EXCEPT

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#Question id: 31038

#Unit 4. Cell Communication and Cell Signaling

For most, but not all, RTKs, the weakly active kinase in each subunit is thought to phosphorylate a key  residue, known as:

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#Question id: 23980

#Unit 8. Inheritance Biology

A mutant phenotype is produced by an individual of the blood group AB, due to some genetics effect  it produces only one copy of the gene another  copy of the gene is missing. this condition is known as