TLS Online TPP Program

#Question id: 2615


What are the effects shown in trp operon if we fused regulatory region of lac with structural genes of trp; which one is incorrect,

#I Life Science/ Life Sciences Group – I-V
  1. Lactose high- block trp synthesis

  2. Lactose & glucose both are available- Basal level

  3. Lactose +, Glucose -, activated level

  4. Lactose-, Glucose+, leaky

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TLS Online TPP Program

#Question id: 3554

#SCPH12 I Genetics

The diploid cell with 6 pairs of chromosomes can divide. How many possible different combinations of maternal and paternal chromosomes in metaphase?

TLS Online TPP Program

#Question id: 3555

#SCPH01 Biochemistry

In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. If an F1 plant is cross with the heterozygous for bitter and no spots, what phenotypes ratio are expected in the offspring?

TLS Online TPP Program

#Question id: 3555

#SCPH12 I Genetics

In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. If an F1 plant is cross with the heterozygous for bitter and no spots, what phenotypes ratio are expected in the offspring?

TLS Online TPP Program

#Question id: 3556

#SCPH01 Biochemistry

Flower color in plant follows incomplete dominance. Cross between AA and aa results all F1 offspring are uniform were allowed to cross with AA genotype. What will be phenotype ratio?

TLS Online TPP Program

#Question id: 3556

#SCPH12 I Genetics

Flower color in plant follows incomplete dominance. Cross between AA and aa results all F1 offspring are uniform were allowed to cross with AA genotype. What will be phenotype ratio?

TLS Online TPP Program

#Question id: 3557

#SCPH01 Biochemistry

What was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants?