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TLS Online TPP Program

#Question id: 1440

Which of the following is NOT evidence that smoking causes lung cancer?

#Section 3: Genetics, Cellular and Molecular Biology

  1. Epidemiological rates of lung cancer dramatically increased after more people started to smoke.

  2. Exposure of lung cells to the active carcinogen found in cigarettes causes mutations in p53.

  3. Mutations in p53 are found in the same codons in patients with lung cancer who smoke as in cultured cells treated with benzo(a)pyrene.

  4. Epidemiological rates of lung cancer in women increased years after the rates in men increased.

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TLS Online TPP Program

#Question id: 4755

#Section 3: Genetics, Cellular and Molecular Biology

When two albino snails were crossed, all of the F1 were pigmented. All F1 intercross would results
TLS Online TPP Program

#Question id: 4756

#Section 3: Genetics, Cellular and Molecular Biology

In summer squash, white colour fruit (W) is dominant over yellow colour (w) and disc-shaped phenotype (D) is dominant over sphere-shaped phenotype (d). Determine the genotype of the parents gives 3/8 white, sphere, 3/8 white, Disk, 1/8 Yellow, Disk and 1/8 Yellow, Sphere?
TLS Online TPP Program

#Question id: 4757

#Section 3: Genetics, Cellular and Molecular Biology

The newborn baby of a mother having blood group O, Rh+ and father having blood group AB, Rh-, got mixed with other babies in the hospital. The baby with which of the following blood groups is not confirmable to be of the said couple?

(i) AB, Rh+                                                    (ii) O, Rh+

(iii) A, Rh+                                         (iv)  B, Rh+
TLS Online TPP Program

#Question id: 4758

#Section 3: Genetics, Cellular and Molecular Biology

The allele l in human population is recessive lethal and x chromosome linked. If a female is heterozygous for l allele marries with normal male. What will be interpretation correct?
TLS Online TPP Program

#Question id: 4799

#Section 3: Genetics, Cellular and Molecular Biology

You set up a mapping cross involving your favorite gene (YFG) in Neurospora and determine the following octad types: 4:4 arrangement 83; 2:4:2 arrangement 7; 2:2:2:2 arrangement 10. What is the distance between your gene and the centromere?
TLS Online TPP Program

#Question id: 4800

#Section 3: Genetics, Cellular and Molecular Biology

You set up a mapping cross involving two genes of interest in Saccharomyces and determine the following tetrad types: 8 nonparentalditype; 12 tetratype; 80 parental ditype. Calculate the most accurate map distance between these two genes.