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TLS Online TPP Program

#Question id: 4733

If a homozygous plant with red peppers is crossed with a homozygous plant with green peppers, all the F1 plants have red peppers. When the F1 are crossed with one another, the F2 are in a ratio of 9 red : 3 brown : 3 yellow : 1 green  due to

#Unit 8. Inheritance Biology

  1. Genes at two loci interact to produce a single characteristic

  2. Genes at two loci does not interact to produce a single characteristic

  3. Gene at two loci are not independently assort to produce single character

  4. Only allelic interaction involved in loci.

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TLS Online TPP Program

#Question id: 31374

#Unit 5. Developmental Biology

For induction of limb bud growth Fgf8-secreting beads can substitute for the: 
TLS Online TPP Program

#Question id: 31375

#Unit 2. Cellular Organization

Which of the following pathway promote cell proliferation?
a. Mitotic exit network
b. Septation initiation network
c. Hippo pathway
d. Spindle assembly checkpoint
TLS Online TPP Program

#Question id: 31376

#Unit 2. Cellular Organization

In S. cerevisiae, DNA replication is tightly controlled, and DNA should replicate once per cell cycle. Choose the INCORRECT statement regarding why the cells do not re-replicate their DNA in the S-phase?
TLS Online TPP Program

#Question id: 31377

#Unit 2. Cellular Organization

During microfilament formation, critical concentration (Cc) represents:
TLS Online TPP Program

#Question id: 31378

#Unit 5. Developmental Biology

The following experimental manipulations were carried out with Xenopus embryo.
Manipulation X: Exposure to UV radiation leading to the failure of cortical rotation.
Manipulation Y: Gastrulae treated with lithium chloride.

The following statements were made with respect to the above manipulations. Which one of the following represents correct statement?
TLS Online TPP Program

#Question id: 31379

#Unit 5. Developmental Biology

The cadherin catenin complex is extremely important during compaction from a morula to the blastula. Transition of early embryonic cells into a blastula differed depending on the presence or absence of calcium ions. In addition, an investigator blocked the expression of β-catenin using vivo morpholinos to detect its effect simultaneously on compaction. Which one of the following conditions will lead to the most successful transition of the morula into the blastula?