Practice Questions

TLS Online TPP Program

#Question id: 749

Which of the following is correct for the A form of DNA structures?

#XL - Q Biochemistry

a wider than B form.
more compressed structure in which the base pairs are tilted with respect to the helix axis, and actually lie off the axis.
The helical repeat of the A-form is around 11 bp/turn
All of the above are correct.

More Questions

#Question id: 5077

#XL - T Zoology

Humans and mice heterozygous for loss-of-function mutations in Pax6 have:

#Question id: 5078

#XL - T Zoology

A human blastomere is:

#Question id: 5079

#XL - T Zoology

The pattern of embryonic development in which only the cells lacking yolk subsequently undergo cleavage is called:

#Question id: 5080

#XL - T Zoology

As cleavage continues during frog development, the size of the blastomeres:

#Question id: 5081

#XL - T Zoology

The vegetal pole of a frog zygote differs from the animal pole in that ________.

#Question id: 5082

#XL - T Zoology

In which of the following organisms does holoblastic cleavage typically occur?

I) sea urchins

II) humans

III) birds

IV) fish