Q1. If a plant has a diploid chromosome number of 2n=24 in its somatic cells, what would be the chromosome number in its pollen grain and in the primary endosperm nucleus?A Pollen: 12, Primary Endosperm Nucleus: 24 B Pollen: 12, Primary Endosperm Nucleus: 36 C Pollen: 24, Primary Endosperm Nucleus: 36 D Pollen: 24, Primary Endosperm Nucleus: 24 View full solution →
Q2. Which of the following describes the correct path of sperm from its production to ejaculation in the male reproductive system?A Testis -> Epididymis -> Urethra -> Vas deferens B Testis -> Epididymis -> Vas deferens -> Urethra C Testis -> Vas deferens -> Epididymis -> Urethra D Epididymis -> Testis -> Vas deferens -> Urethra View full solution →
Q3. Despite successful fertilization, a plant fails to produce viable seeds. Which of the following conditions is the most likely reason for this failure?A Lack of insect pollinators for subsequent flowers B Failure of the endosperm to develop properly C Inadequate sunlight exposure after pollination D Excessive watering immediately after fertilization View full solution →
Q4. A scientist observes a filamentous alga that breaks into several pieces, and each piece grows into a new, complete alga. This process is called:A Spore formation B Fragmentation C Budding D Regeneration View full solution →
Q5. Which of the following contraceptive methods works primarily by preventing ovulation in human females?A Condom B Intrauterine device (IUD) C Diaphragm D Oral contraceptive pills View full solution →
Q6. A sexually reproducing organism consistently produces offspring that are exact genetic copies of itself, bypassing the typical process of gamete fusion. This phenomenon suggests the organism might be exhibiting which of the following?A Parthenogenesis B Budding C Binary Fission D Apomixis View full solution →
Q7. A student observes a culture of yeast cells under a microscope. After adding glucose solution, they notice small outgrowths forming on the parent cells, which then detach to form new individual yeast cells. Which of the following processes is the student observing?A Fragmentation B Binary fission C Budding D Regeneration View full solution →
Q8. Which of the following describes the primary function of the uterus in human reproduction?A Site of fertilization B Production of ova C Secretion of female sex hormones D Implantation and development of the embryo View full solution →