Reproduction in Organisms Objective
- The process of formation of gametes is called
(a) Gametogenesis
(b) Cytokinesis
(c) Sporogenesis
(d) Meiocytes
Ans (A)
- The menstrualcycle occurs in
(a) Human
(b) Apes
(c) Both
(d) None of the above
Ans (C)
- Which are does not show Ostrus cycle
(a) Dog
(b) Cow
(c) Monkey
(d) None of the above
Ans (C)
- Amoeba reproduces by
(a) Binary fission
(b) Buds
(c) Conidia
(d) None of the above
Ans (A)
- Which one is not bisexual
(a) Leech
(b) Tapeworm
(c) Dog
(d) None of the above
Ans (C)
- The process of development of the embryo is called
(a) Sporogenesis
(b) Embryogenesis
(c) Vivipary
(d) None of the above
Ans (B)
- The fusion of gametes is called
(a) Syngamyn
(b) Pollination
(c) Parthenogenesis
(d) None of the above
Ans (A)
- How many chromosomes are present in a human gamete
(a) 46
(b) 48
(c) 23
(d) None of the above
Ans (C)
- Which is not unisexual
(a) Cow
(b) Dog
(c) Earthworm
(d) All of the above
Ans (C)
- What is fertilization?
(a) The fusion of egg with male nuclei.
(b) The fusion of egg with secondary nucleus
(c) The fusion of egg with synergid
(d) None of these
Ans (B)
- Oviparous are
(a) hen
(b) snake
(c) crocodile
(d) all of these
Ans (D)
- Copulatory organs are not formed in
(a) mammals
(b) reptiles
(c) octopus
(d) birds
Ans (C)
- In which of the following alternation of generations, the main plant is a gametophyte?
(a) Haplontic
(b) Diplontic
(c) Haplo-diplontic
(d) None of these
Ans (A)
- In which of the following, calyx covers the whole fruit?
(a) Physalis
(b) Tomato
(c) Brinjal
(d) Litchi
Ans (A)
- The Oestrus cycle occurs in
(a) dog
(b) cow
(c) buffalo
(d) all of these
Ans (D)
- Which one of these is haploid?
(a) Egg
(b) Zygote
(c) Integument
(d) Nucellus
Ans (A)
- Which one of these is diploid?
(a) Egg
(b) Pollen
(c) Male gamete
(d) Zygote
Ans (D)
- In which of the following plant body is a gametophyte?
(a) Algae
(b) Fungi
(c) Bryophytes
(d) All of these
Ans (D)
- Which of the following is oviparous?
(a) Crocodile
(b) Snake
(c) Hen
(d) All of these
Ans (D)
- Diploid chromosome number in potato is
(a) 34
(b) 40
(c) 48
(d) 32
Ans (C)
- Haploid chromosome number in a dog is
(a) 23
(b) 39
(c) 19
(d) 4
Ans (B)
- The multiplication of genetically identical copies of a cultivar by asexual means is called
(a) mass culture of plant cells
(b) organogenesis
(c) clonal variation
(d) None of these
Ans (C)
- Parthenogenesis is the development of
(a) fruit without hormones
(b) embryo without fertilization
(c) embryo from an egg without fertilization
(d) fruit without fertilization
Ans (C)
- Upon fertilization, while the ovule develops into a seed, which structure develops from the carpel?
(a) Perisperm
(b) Pericarp
(c) Testa
(d) None of these
Ans (B)
- Which one is not an oviparous animal?
(a) Snake
(b) Chicken
(c) Crocodile
(d) Human
Ans (D)
- Which of the following is incorrect?
(a) The length of time which an organism is likely to live is called its life span.
(b) Binary fission takes place in Bacteria and Amoeba.
(c) Hydra reproduces asexually by budding.
(d) Strobilanthus kunthiana flowers once in two years.
Ans (D)
- New plants develop from leaves in
(a) Eichhornia
(b) Bryophyllum
(c) Cycas
(d) Gladiolus
Ans (B)
- External fertilization takes place in
(a) algae
(b) reptiles
(c) birds
(d) mammals
Ans (A)
- External fertilization does not takes place in
(a) oyster
(b) sea star
(c) jellyfish
(d) mammals
Ans (D)
- Internal fertilization takes place in
(a) birds
(b) frog
(c) algae
(d) fish
Ans (A)
- Reproduction by ‘budding’ occurs in
(a) yeast
(B) paramecium
(C) penicillium
(D) all of these
Ans (A)
32. Penicillium reproduces by :
(a) budding
(b) fragmentation
(c) gemmules
(d) conidia
Ans (D)
- In which of the following fertilization is internal?
(a) Fishes
(b) Amphibians
(c) Majority of Algae
(d) Angiosperms
Ans (D)
- Which one is incorrect?
(a) Sexual reproduction involves the formation and fusion of gametes
(b) Pre-fertilization events include gametogenesis and gamete transfer
(c) Gametes are diploid in nature.
(d) Syngamy occurs between the male and female gametes
Ans (C)
- Morphologically and genetically similar organisms are called
(a) clone
(b) somaclones
(c) cosmids
(d) hybrids
Ans (A)
- In which of the following water is not essential for gamete transfer?
(a) Algae
(b) Bryophytes
(c) Pteridophytes
(d) Gymnosperms
Ans (D)
- Which one has a diploid parental body?
(a) Fungi
(b) Human
(c) Algae
(d) Bryophytes
Ans (B)
- Binary fission takes place in
(a) Amoeba
(b) Paramecium
(c) Bacteria
(d) None of the above
Ans (B)
- Which of the following reproduces by budding?
(a) Hydra
(b) Saccharomyces
(c) Amoeba
(d) (a) and (b)
Ans (D)
- Aplanospores are formed in
(a) Sycon
(b) Rhizopus
(c) Mucor
(d) (b) and (c)
Ans (D)
- Conidia are formed in
(a) Aspergillus.
(b) Rhizopus
(c) Chlamydomonas
(d) None of the above
Ans (A)
- Which of the following is a modified stem and used for vegetative propagation?
(a) Rhizome
(b) Bulb
(c) Tuber
(d) All of the above
Ans (D)
- Which statement is correct with regard to Eichhornia?
(a) It is an aquatic plant.
(b) It is also known as the terror of Bengal.
(c) It reproduces by offset.
(d) All of the above
Ans (D)
- Which one is monocarpic?
(a) Agave
(b) bamboo
(c) (a) and (b)
(d) Kalanchoe
Ans (C)
- In which of the following ‘new plants develop on leaves?
(a) Bryophyllum
(b) Kalanchoe
(c) (a) and (b)
(d) Helianthus
Ans (C)
- Internal fertilization takes place in
(a) Mammals
(b) Reptiles
(c) Birds
(d) All of the above
Ans (D)
- Which of the following type of gametes occur in Chlamydomonas?
(a) Isogametes
(b) Anisogametes
(c) Oogametes
(d) All of the above
Ans (D)
- Which of the following is a hermaphrodite?
(a) Tapeworm
(b) Sponge
(c) Earthworm
(d) All of the above
Ans (D)
- Which of the following are formed without completion of the fertilization process?
(a) Bee
(b) Pea
(c) Rotifers
(d) (a) and (c)
Ans (D)
