BIO 1020 EXAM (SOUTH UNI) QNS & ANS 2026/2027 (9pages)

1. A bacteriophage is a virus that attacks bacteria 2. A dominant trait appears in 19% of the individuals in a population that is in Hardy-Weinberg equilibrium. What percent of the population in the next generation is expected to be homozygous dominant? 19% 3. A transcription of the DNA sequence CCCGGAATT would produce which of the following sequences in Mrna GGGCCUUAA 4. Which of the following transmits nerve impulses between neurons? Neurotransmitters 5. Aphids are insects that insert their needlelike mouthparts into plants. Sometimes, fluid from the plant tissues passes entirely through the digestive tract of the aphid and emerges as a small droplet at its posterior end. The source of this liquid is probably phloem cells 6. An amino acid is related to a protein in the same way as glycerol is related to a saturated fat 7. Pine leaves (needles) have a thick cuticle, stomata that are sunken below the surface, and an endodermis with Casparian strips. These features suggest leaf adaptation to dry habitats 8. A function of the allantois is to store or dispose of wastes from the developing embryo