TLS Online TPP Program

#Question id: 9232


Establishing new nature reserves in biodiversity hot spots may not necessarily the best choice because ________.

#Unit 9. Diversity of Life Forms
  1. hot spots are situated in remote areas not accessible to the public
  2. their ecological importance makes land purchase very expensive
  3. a hot spot helps conserve only a few species
  4. changing environmental conditions may shift the location of the hot spot
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TLS Online TPP Program

#Question id: 4876

#Unit 8. Inheritance Biology

A panel of cell lines was created from mouse–human somatic cell fusions. Each line was examined for the presence of human chromosomes and for the production of human haptoglobin (a protein). The following results were obtained: On the basis of these results, which human chromosome carries the gene for haptoglobin?

TLS Online TPP Program

#Question id: 4877

#Unit 8. Inheritance Biology

In rabbit, spotted pattern is dominant over solid colour and short hair over angora . A F1 spotted short hair was test cross to solid colour angora stock. The cross produced

Spotted angora               - 26                        

Solid coloured angora     144

Spotted short hair            157                      

Solid colour short hair       23

What is the recombination percentage between  genes?

TLS Online TPP Program

#Question id: 4878

#Unit 8. Inheritance Biology

Two strain of Neurospora crassa , one mutant for gene a , other mutant for gene b , are crossed ,result are shown below

Percent of asci

1+2

3+4

5+6

7+8

77

aB

aB

Ab

Ab

15

aB

AB

ab

Ab

7

aB

ab

AB

Ab

1

aB

Ab

aB

Ab

A and B gene located at

TLS Online TPP Program

#Question id: 4879

#Unit 8. Inheritance Biology

A wild plant with genes AABBCC was crossed with a triple recessive mutant aabbcc. The F1 male hybrid (AaBbCc) was then back crossed with the triple mutant and the phenotypes recorded are as follows

AabbCc (50), aaBbcc(50), AaBbCc (100), aabbcc (100), AaBbcc (350), aabbCc (350)

Distance between A to B is ----------M----- map unit with ………N…….configuration, distance between B to C is ----O---- map unit with ------P-------configuration?

TLS Online TPP Program

#Question id: 4880

#Unit 8. Inheritance Biology

There is following normal gene and their restriction site are given

 Mutant phenotype due to mutation that alters EcoRI site 1 occurs in this piece of DNA. There is following analysis of different band in their family (+ present , - absent) 

Visible band

Male Parents I

Female Parents II

Son  ( affected )

Daughter  ( normal)

2 Kb

+

+

-

+

4 Kb

+

+

-

+

5 Kb

+

+

+

+

6 Kb

-

+

+

+

 Which of the following is mode of inheritance of trait?

TLS Online TPP Program

#Question id: 4881

#Unit 8. Inheritance Biology

A panel of cell lines was created from mouse–human somatic-cell fusions. Each line was examined for the presence of human chromosomes and for the production of three enzymes. The following results were obtained On the basis of above results. Which of the following chromosome location of enzyme 1, enzyme 2, and enzyme 3?