/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Biology Class 12 This Quiz Contains a Set of 10 Questions. Passing cut-off is 60%. To Start the Quiz... Click on the Start Button. All the Best. 1 / 10 On the ribosome, mRNA binds ______________ and two sites in the____________ for subsequent amino acids to bind to be close enough to each other for the formation of a peptide bond. between the subunits; on the large subunit. to the large subunit; on the small subunit. to the small subunit; on the large subunit. to the small subunit; between the subunits. 2 / 10 Idli – dosa dough rises due to production of which of the following gas? CO CO2 NO NO2 3 / 10 Most important cause of biodiversity loss is: Over exploitation of economic species Habitat loss and fragmentation Invasive species Breakdown of plant-pollinator relationships 4 / 10 Name the enzymes 'P' and 'Q' that carry out the following processes Enzyme P-Exonuclease and Enzyme Q-Permease Enzyme P-Exonuclease and Enzyme Q- Ligase Enzyme P-Endonuclease and Enzyme Q- Permease Enzyme P-Endonuclease and Enzyme Q-Ligase 5 / 10 A cross is made between tall pea plants having green pods and dwarf pea plants having yellow pods. In the F2 generation, out of 80 plants how many are likely to be tall plants? 15 20 45 60 6 / 10 At a particular locus, the frequency of allele A is 0.8 and that of allele a is 0.2. What would be the frequency of heterozygotes in a random mating population at equilibrium? 0.32 0.16 0.24 0.48 7 / 10 A female undergoing IVF treatment has blocked fallopian tubes. The technique by which the embryo with more than 8 blastomeres will be transferred into the female for further development is ZIFT GIFT IUT AI 8 / 10 Assertion (A): When white eyed, yellow bodied Drosophila females were hybridized with red eyed, brown-bodied males; and F1 progeny was intercrossed, F2 ratio deviated from 9 : 3 : 3 : 1. Reason (R): When two genes in a dihybrid are on the same chromosome, the proportion of parental gene combinations is much higher than the non-parental type. Both A and R are true and R is the correct explanation of A. Both A and R are true and R is not the correct explanation of A. A is true but R is false. A is False but R is true. 9 / 10 Assertion (A): Lactational amenorrhea is the natural method of contraception. Reason (R): It increases the phagocytosis of sperm. Both A and R are true and R is the correct explanation of A Both A and R are true and R is not the correct explanation of A A is true but R is false A is False but R is true 10 / 10 How many types of gametes would be produced if the genotype of a parent is AaBB? 1 2 3 4 Your score is 0% Restart quiz
