What is probability of couple where male is karyotypically normal and the female in pericentric inversion in heterozygous condition produced child with disability if no crossing over takes placed within pericentric inversion. (Note: Duplication and deletion in gamete will results  in disability)

#Question id: 12724

#Unit 6. System Physiology – Plant

In response to sudden, 5 to 10°C rises in temperature, plants produce a unique set of proteins referred to as heat shock proteins (HSPs). There are five classes of heat shock proteins found in plants such as;

Match the following HSPs   with their correct location and the examples of the HSPs;

#Question id: 380

#Unit 1. Molecules and their Interaction Relevant to Biology

The Henderson-Hasselbalch equation:

#Question id: 2744

#Unit 2. Cellular Organization

Nucleosome is made up of __________

#Question id: 28489

#Unit 5. Developmental Biology

beneath the ectoderm, a highly proliferative mesenchyme that fuels limb bud growth is called___

#Question id: 4459

#Unit 3. Fundamental Processes

Give correct explanation, why RNA polymerase can initiate a new RNA chain on a DNA template without any primer?

A. Because RNA polymerase starts most transcripts with an A, and that ribonucleotide binds the template nucleotide (T) with only two hydrogen bonds.

B. The enzyme has to make specific interactions with one or all of the DNA template strand, the initiating ribonucleotide, and the second ribonucleotide—holding one (or all) rigidly in the correct orientation to allow chemical attack on the incoming NTP.

C. The structure of the open complex shows that the s region 3/4 linker interacts with the template strand, organizing it in the correct conformation and location to allow initiation.

D. Consistent with this, in experiments using an RNA polymerase containing a s70 derivative lacking this part of s, initiation requires much lower than normal concentrations of one or both of the first two ribonucleotides.