TLS Online TPP Program

#Question id: 5706


Species A has 2n = 16 chromosomes and species B has 2n = 14. How many chromosomes would be found in an allotriploid of these two species?

#Unit 8. Inheritance Biology
  1. 21 or 24             

  2. 22 or 23

  3. 42 or 48 

  4. 45

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TLS Online TPP Program

#Question id: 11314

#Unit 10. Ecological Principles

What type of organism produces acids that degrade rocks and minerals?

TLS Online TPP Program

#Question id: 10371

#Unit 6. System Physiology – Plant

There are three essential nod gene for every bacterial species that is−NodA, NodB and NodC, that are required for synthesizing this basic structure such as;

a) NodA is an N-acyltransferase that catalyzes the addition of a fatty acyl chain

b) NodB is a chitin-oligosaccharide synthase that links the acetyl group of the terminal nonreducing sugar

c) NodC is a chitin-oligosaccharide synthase that links N-acetyl-D-glucosamine monomers

d) NodB is a chitin-oligosaccharide deacetylase that removes the acetyl group from the terminal nonreducing sugar

e) NodC is a chitin-oligosaccharide deacetylase that removes links N-acetyl-D-glucosamine monomers

Which of the following statements about NOD Factor is incorrect?

TLS Online TPP Program

#Question id: 4721

#Unit 8. Inheritance Biology

PKU, results from a recessive allele; persons homozygous for this allele, if untreated, exhibit mental retardation, blue eyes, and light skin color. This character categorized as

TLS Online TPP Program

#Question id: 818

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one of the following weak interactions have central features of protein structures, but makes only minor contributions to protein stability?

TLS Online TPP Program

#Question id: 557

#Unit 1. Molecules and their Interaction Relevant to Biology

The number of substrate molecules converted to product in a given unit of time by a single enzyme molecule at saturation is referred to as the: