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TLS Online TPP Program

#Question id: 800

Following table lists the two major forms of DNA duplexes, conformation of base attached to the sugar and the nature of major and minor grooves.

DNA duplex

Properties

(A)  A form

(i) Syn conformation of the base to sugar

(B)  B form

(ii) Anti conformation of the base to sugar

 

(iii) Wide major groove

 

(iv) Narrow major groove

 

(v) Wide minor groove 

 

(vi) Narrow minor groove 

 

(vii) C-3’ endo sugar puckering

 

(viii) C-2’ endo sugar puckering

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. A – ii, iv, v, vii and B – ii, iii, vi, viii

  2. A – i, iv, v, vii and B – ii, iii, vi, viii

  3. A – ii, iii, vi, vii and B – ii, iv, v, viii

  4. A – ii, iv, v, viii and B – ii, iii, vi, vii

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TLS Online TPP Program

#Question id: 1499

#Unit 4. Cell Communication and Cell Signaling

The normal protein product of the RB gene acts as an:
TLS Online TPP Program

#Question id: 20276

#Unit 7. System Physiology – Animal

Central diabetes insipidus is caused by failure of the posterior pituitary to secrete ADH and the following statements pertain to that disorder:
A. excretion of large volumes of dilute urine
B. the urine cannot be concentrated
C. produces large volumes of dilute urine
D. increased serum osmolarity
E. circulating levels of ADH are high
Which of the following is the correct combination of the statements given above?
TLS Online TPP Program

#Question id: 12439

#Unit 10. Ecological Principles

We both want to dine at the same fine restaurant on the same day and at the same time. Unfortunately, there is only one seat left. Quickly assessing the situation, i (discreetly) hit you over the head with the hammer that i carry on the off chance that i might need to use one. I then proceed to the seat and enjoy the meal. This situation is most similar to
TLS Online TPP Program

#Question id: 12176

#Unit 8. Inheritance Biology

In a Z-linked characteristic, Cameo plumage, which produces brown feathers, while the wild-type plumage is a glossy metallic blue. If  a pure blue-colored male is crossed with a cameo female, then what will be the probability of blue and cameo plumage of male and female in F2 phenotype?
TLS Online TPP Program

#Question id: 14780

#Unit 13. Methods in Biology

A and B throws two dice; if A throws 9 then B’s chance of throwing a higher number is 1/6 , state whether the above statement is true or false.