TLS Online TPP Program

#Question id: 13105


With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.
  

Given the data so far, for which of the following statement is correct

#Unit 13. Methods in Biology
  1. Baby A is legitimate child of given parents because it has a band @ n=25 and there is only one set of parents that could have given a chromosome 15 with n=25 to their offspring, couple #3
  2. Baby B is legitimate child of given parents because it has a band @ n=25 and there is only one set of parents that could have given a chromosome 15 with n=30 to their offspring, couple #2
  3. Baby C is legitimate child of given parents because it has a band @ n=30 and there is only one set of parents that could have given a chromosome 15 with n=25 to their offspring, couple #1.
  4. Baby A is legitimate child of given parents because it has a band @ n=35 and there is only one set of parents that could have given a chromosome 15 with n=35 to their offspring, couple #3.

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TLS Online TPP Program

#Question id: 11439

#Unit 1. Molecules and their Interaction Relevant to Biology

Arrange in increasing order of alkalinity

1. Pk1 arginine

2. pk2 proline

3. pk2 alanine

4. pkR arginine

TLS Online TPP Program

#Question id: 11440

#Unit 1. Molecules and their Interaction Relevant to Biology

Arginine contains a guanidinium R-group and has pK1,pk2 pkR values of 2.17, 9.04, and 12.48 For arginine molecules at pH=14,

TLS Online TPP Program

#Question id: 11441

#Unit 1. Molecules and their Interaction Relevant to Biology

Tyrosine contains a phenolic R-group and has pK1, pk2, pkR values of 2.20, 9.11, and 10.07 At which pH will all the tyrosine be in their fully protonated form?

TLS Online TPP Program

#Question id: 11442

#Unit 10. Ecological Principles

Forests dominated primarily by evergreen trees with abundant lianas and epiphytes are found in which of the following biomes?

TLS Online TPP Program

#Question id: 11443

#Unit 10. Ecological Principles

To qualify as a Biodiversity Hotspot, an area must contain__:

A .At least 1,500 species of endemic vascular plants

B .At least 70 percent land covered by vascular plants

C .At least 25 threatened species of mammals

D .At least one protected area such as national park

 Choose the correct option from the codes given below:

TLS Online TPP Program

#Question id: 11444

#Unit 10. Ecological Principles

Ecologist have proposed following explanation to lead maximize biodiversity at tropic.

A. Higher productivity in the tropics allows for more species present

 B. Old communities have greater species than younger community

 C. Natural enemies such as predators and parasite limit competition in the tropics, which allows more species to coexist

D. Very less intensity of disturbances in the tropics promote high succession diversity