MCQs Biology-17 Posted on November 27, 2025December 3, 2025Author agropublishers 0 MCQs Biology-17 1. The discovery of the first chemical mutagen, mustard gas, was made by __________. Herman Muller Joshua Lederberg Thomas Hunt Morgan Charlotte Auerbach and J.M. Robson 2. A sample statistic may differ from the population parameter. This natural and expected discrepancy can be primarily attributed to ———- Sampling error Constant variance Zero randomness Precision 3. When the data are collected from every student in a class, the study is based on —————- An estimate A biased sample A population A sample 4. A hybrid from a cross between two single crosses is known as __________ Three-way cross Double cross Dihybrid Multiple hybrid 5. Which situation describes sampling? Measuring only 50 bacteria from a large culture Analyzing the entire genome of all individuals Counting all bacteria in a culture Measuring every newborn in a hospital 6. Deficiency of vitamin B12 results in———– Night blindness Scurvy Rickets Pernicious anemia 7. Which process converts pre-mRNA into mature mRNA by removing introns? Capping Recombination Polyadenylation Splicing 8. The TATA box in eukaryotes is recognised by ————- Mediator complex Enhancer-binding proteins RNA polymerase II directly TFIID (TBP) 9. In humans, the primary function of large intestine is ——– Water and electrolyte absorption Lipid emulsification Protein digestion Enzyme secretion 10. The animal most closely related to the horse in evolutionary terms is __________ Deer Cow Donkey Camel Loading … Question 1 of 10
