TLS Online TPP Program

#Question id: 4654


Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having developed from very similar embryonic tissues. How do biologists interpret these similarities?

#Unit 11. Evolution and Behavior
  1. By identifying the bones as being homologous

  2. By the principle of convergent evolution

  3. By proposing that humans, bats, and dolphins share a common ancestor

  4. A and C only

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TLS Online TPP Program

#Question id: 3627

#Unit 8. Inheritance Biology

A cross is made between two plants with white flowers. All the F1 progeny had red colored flower. This is because of

TLS Online TPP Program

#Question id: 3628

#Unit 8. Inheritance Biology

Two mutant plants, both bearing white flowers, were crossed. All F1 plants had red colored flowers. Which one of the following conclusions is correct?

TLS Online TPP Program

#Question id: 3629

#Unit 8. Inheritance Biology

Complementation test for four different mutant phenotype 1, 2 , 3 and  4 were allowed and detect phenotype given table

Pair of mutantphenotype
1 & 4wild
1 & 3wild
2 & 3wild
2 & 4mutant
What are number of citron that four mutant were belong

TLS Online TPP Program

#Question id: 3634

#Unit 8. Inheritance Biology

In the pearl millet plant, color is determined by three alleles at a single locus: Rp1 (red), Rp2 (purple), and Rp3 (green). Red is dominant over purple and green, and purple is dominant over green (Rp1 >Rp2 >Rp3). Which of the following parental cross would produce ½ had red, ¼ purple, ¼ green?

TLS Online TPP Program

#Question id: 3630

#Unit 8. Inheritance Biology

In the pearl-millet plant, color is determined by three alleles at a single locus: Rp1 (red), Rp2 (purple), and rp (green). Red is dominant over purple and green, and purple is dominant over green (Rp1 > Rp2 > rp). What will be expected phenotypes and ratios of offspring produced by the Rp1/rp × Rp2/rp crosses?

TLS Online TPP Program

#Question id: 15011

#Unit 8. Inheritance Biology

Which of the following statements about a lethal allele is NOT correct?