How to Phosphofructokinase-1 (PFK-1) and Fructose 1,6-Bisphosphatase are reciprocally regulated ?

a) ATP inhibits PFK-1 by binding to an allosteric site and lowering the affinity of the enzyme for its substrate fructose 6-phosphate

b) citrate is also an allosteric regulator of PFK-1, high citrate concentration increases the inhibitory effect of ATP

c) FBPase-1, is strongly inhibited (allosterically) by AMP; when the cell’s supply of ATP is low (corresponding to high AMP), the ATP-requiring synthesis of glucose slows

d) AMP inhibits PFK-1 by binding to an allosteric site and lowering the affinity of the enzyme for its substrate fructose 6-phosphate

Which of the following statements of regulation of enzyme is correct?

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#Question id: 5734

#Unit 8. Inheritance Biology

Following is heterozygote for inversion?

Following some statement given for above abnormality?

A) There is a less probability of a crossover occurring within inversion region and producing an enviable cross over meiotic product.

B) Chromosomes that have engaged in crossing-over separate in the normal fashion, without the creation of a bridge

C) The crossover produces chromatids that contain duplication and a deletion for different parts of the chromosome results non viable gamete

D) Double cross over within inversion loop will be results all viable gamete of parental and recombinant

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#Question id: 13111

#Unit 2. Cellular Organization

Which of the following utilizes the H2O2 generated by other enzymes in the organelle to oxidize a variety of other substances—including alcohols, phenols, formic acid and formaldehyde—by the “peroxidative” reaction?

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#Question id: 18593

#Unit 11. Evolution and Behavior

Some important events in the history of life on Earth are given below.

A. First dinosaurs appeared.

B. First reptiles appeared.

C. First insect fossils appeared.

D. First toothed birds appearance.

E. First wingless insect appeared.

F. Mammals like reptile arise

Match the above with the geological time periods and choose the correct combination,

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#Question id: 23217

#Unit 13. Methods in Biology

What are the advantages of using Scanned probe microscope?

1. Do not modifies the specimen

2. It modifies the specimen

3. No exposure to high energy radiation

4. Exposure to high energy radiation

Which of the following options is incorrect?

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#Question id: 23691

#Unit 13. Methods in Biology

A gene that contains introns can be made shorter (but remain functional) for genetic engineering purposes by using