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TLS Online TPP Program

#Question id: 4011

Using both the enzyme reverse transcriptase and radiolabeled deoxynucleotides, you make a radioactive DNA copy from an mRNA. When you hybridize that copy DNA to nuclear DNA, you find that there are seven different chromosomal positions where hybridization occurs, and there are three unhybridized loops at each of the seven positions. From this you conclude:

#Unit 3. Fundamental Processes

  1. There are seven copies of the gene for that mRNA and three nontranscribed segments in each gene.

  2. There are seven copies of the gene for that mRNA and three exons in each gene.

  3. There are three copies of the gene for that mRNA and seven exons in each gene.

  4. There are seven copies of the gene for that mRNA and three introns in each gene.

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TLS Online TPP Program

#Question id: 29515

#Unit 6. System Physiology – Plant

Which of the following represents a particularly toxic class of N-containing secondary metabolites that produces HCN upon tissue damage
TLS Online TPP Program

#Question id: 11729

#Unit 6. System Physiology – Plant

Given some properties of cytokinin;

a) Kinetin is a naturally occurring plant growth regulator

b) it does occur as a base in the DNA of any species

c) It is a by-product of the heat-induced degradation of DNA

d) the deoxyribose sugar of adenosine is converted to a furfuryl ring and shifted from the 9 position to the 6 position on the adenine ring

which of the following given statements incorrect?
TLS Online TPP Program

#Question id: 3568

#Unit 8. Inheritance Biology

You begin to study a novel plant species and discover that this diploid plant has 16 chromosomes. How many linkage groups would you expect to find?
TLS Online TPP Program

#Question id: 11884

#General Aptitude

Two numbers are in the ratio 3 : 4. If their HCF is 4, then their LCM is
TLS Online TPP Program

#Question id: 16119

#Unit 7. System Physiology – Animal

Following statements are regarding to Shivering, which is the most potent mechanism for increasing heat production in the body. 
A. Cold environmental temperatures activate centers in the posterior hypothalamus during shivering, which then activate the α and γ motoneurons innervating skeletal muscle. 
B. Shivering involves skeletal muscle contracts rhythmically, generating heat and raising body temperature.
C. Shivering involves stimulation of Na+-K+ ATPase and raising body temperature.
D. Shivering involves stimulation of β receptors in brown fat, which increases metabolic rate and heat production.
Which of the following combination is correct?