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