Q1. Which of the following groups is formed only of the hermaphrodite organisms?

• A) Earthworm, tapeworm, housefly, frog
• B) Earthworm, tapeworm, seahorse housefly
• C) Earthworm, leech, sponge, roundworm
• D) Earthworm, tapeworm, leech, sponge

Q2. Which of the following options shows bisexual animals only?

• A) Amoeba, sponge, leech
• B) Sponge, cockroach, Amoeba
• C) Earthworm, sponge, leech
• D) Tapeworm, earthworm, honeybee

Q3. Read the following statements and select the incorrect one.

• A) Cucurbits and coconuts are monoecious plants
• B) Papayas and date palms are dioecious plants.
• C) Leeches and tapeworms are bisexual animals.
• D) Sponges and coelenterates are unisexual animals

Q4. Meiosis does not occur in

• A) asexually reproducing diploid individuals
• B) sexually reproducing haploid individuals
• C) sexually reproducing diploid individuals
• D) all of these.

Q5. A diploid parent plant body produces ________ gametes and a haploid parent plant body produces ________gametes.

• A) diploid, haploid
• B) haploid, diploid
• C) diploid, diploid
• D) haploid, haploid

Q6. Which of the following organisms has the highest number of chromosomes?

• A) Housefly
• B) Butterfly
• C) Ophioglossum
• D) Onion

Q7. In maize, a meiocyte has 20 chromosomes. What will be the number of chromosomes in its somatic cell?

• A) 40
• B) 30
• C) 20
• D) 10

Q8. If a butterfly has chromosome number 360 in its meiocyte (2n). What will be the chromosome number in its gametes?

• A) 190
• B) 380
• C) 95
• D) 760

Q9. In flowering plants, both male and female gametes are non-motile. The method to bring them together for fertilisation is

• A) water
• B) air
• C) pollination
• D) apomixis

Q10. In which of the following plants, sepals do not fall off after fertilisation and remain attached to the fruit?

• A) brinjal
• B) cucumber
• C) papaya
• D) Bitter gourd

Q11. The wall of the ovary forms

• A) pericarp
• B) fruit wall
• C) fruit
• D) both (a) and (b).

Q12. The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because

• A) offspring do not possess exact copies of parental DNA
• B) DNA of only one parent is copied and passed on to the offspring
• C) offspring are formed at different times
• D) DNA of parent and offspring are completely different

Q13. The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively

• A) 12, 24, 12
• B) 24, 12, 12
• C) 12, 24, 24
• D) 24, 12, 24

Q14. Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because

• A) nodes are shorter than intemodes
• B) nodes have meristematic cells
• C) nodes are located near the soil
• D) nodes have non-photosynthetic cells.

Q15. There is no natural death in single celled organisms like Amoeba and bacteria because

• A) they cannot reproduce sexually
• B) they reproduce be binary fission
• C) parental body is distributed among the offspring
• D) they are microscopic.

Q16. There are various types of reproduction. The type of reproduction adopted by an organism depends on

• A) the habitat and morphology of the organism
• B) morphology of the organism
• C) morphology and physiology of the organism
• D) the organisms habitat, physiology and genetic makeup.

Q17. Which of the following is a post-fertilisation event in flowering plants?

• A) Transfer of pollen grains
• B) Embryo development
• C) Formation of flower
• D) Formation of pollen grains

Q18. The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be

• A) 20
• B) 10
• C) 40
• D) 15

Q19. The growth phase of an organism before attaining sexual maturity is referred to as

• A) juvenile phase
• B) vegetative phase
• C) both (a) and (b)
• D) None of the above

Q20. Select the monocarpic plant out of the following.

• A) Bamboo
• B) Litchi
• C) Mango
• D) all of these.

Q21. Clear cut vegetative, reproductive and senescent phases cannot be observed in

• A) annual plants
• B) perennial plants
• C) biennial plants
• D) ephemeral plants.

Q22. Strobilanthus kunthiana flowers once in

• A) 5 years
• B) 12 years
• C) 20 years
• D) 50 years

Q23. Strobilanthus kunthiana differs from bamboo in

• A) being monocarpic
• B) length of juvenile phase
• C) being polycarpic
• D) none of these.

Q24. Oestrous cycle is reported in

• A) cows and sheep
• B) humans and monkeys
• C) chimpanzees and gorillas
• D) none of these.

Q25. Which of the following animals show menstrual cycle?

• A) Gorillas and chimpanzees
• B) Monkeys and humans
• C) Orangutans and monkeys
• D) All of these