TLS Online TPP Program

#Question id: 10684


Which one of the following statements is INCORRECT?

#Unit 10. Ecological Principles
  1. kleptoparasitism is a type of parasitism involving theft of resources from one individual by another
  2. Interference competition are present in only vertebrate while absent in invertebrate
  3. Intrasexual selection, males compete with one another for the opportunity to mate with a female
  4. The result of haplodiploidy, females are more related to their sisters than they would be to their own offspring
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TLS Online TPP Program

#Question id: 4870

#Unit 8. Inheritance Biology

Following gene order is for three points. If Genotype +y +ct +v produced actual number of double cross over gamete is 10 out of total 1000. What is interference value?

TLS Online TPP Program

#Question id: 4871

#Unit 8. Inheritance Biology

In a testcross of an individual heterozygous for each of three linked genes, the most frequent classes of progeny were A B c/a b c and a b C/a b c, and the least frequent classes were A B C/a b c and a b c/a b c. what is the order of the genes?

TLS Online TPP Program

#Question id: 4872

#Unit 8. Inheritance Biology

F1 heterozygous females are test-crossed with males and produced 1800 progeny The interference between these genes is 0.4. What number is of observe double cross over? 

TLS Online TPP Program

#Question id: 4873

#Unit 8. Inheritance Biology

Six bands in a salivary gland chromosome of Drosophila are shown in the following figure, along with the extent of five deletions (Del 1 to Del 5)


TLS Online TPP Program

#Question id: 4874

#Unit 8. Inheritance Biology

In Drosophila melanogaster, black body (b) is recessive to gray body (B), purple eyes (pr) are recessive to red eyes (PR), and vestigial wings (vg) are recessive to normal wings (VG). The loci coding for these traits are linked, with the following map distances

 The interference among these genes is 0.5. Pure line breeding cross Gray body, Red eye, normal wings with black body, purple eye, vestigial wings. If heterozygous female for all loci were allowed test cross, the of progeny with gray body, purple eye and vestigial  wings out of 1400?

TLS Online TPP Program

#Question id: 4875

#Unit 8. Inheritance Biology

Early in the development of a plant, a mutation in cpDNA removes a specific BgIII restriction site (B) In this species cpDNA is inherited maternally. Seeds from the plant are grown, and the resulting progeny plants are sampled for cpDNA. The cpDNAs are cut with BgIII, and Southern blots are hybridized with the probe P shown. The autoradiograms show three patterns of hybridization:

Which of the following is correct about plant of seed?

a. plant of seed 1 having only mutated chloroplast

b- Plant of seed 2 having only normal chloroplast

c- Plant of seed 3 having only normal chloroplast

d- Plant of seed 3 having both normal and mutant chloroplast