How do Organisms Reproduce class 10 Most important MCQ

How do Organisms Reproduce class 10 Most important MCQ

Question:1 In a flower the parts that produce male and female gametes (germ cells) are

  1. Stamen and anther
  2. filament and stigma
  3. Anther and ovary
  4. stamen and style

Question:2 which of the following is the correct sequence of event of sexual reproduction in a flower?

  1. Pollination, Fertilisation seedling embryo
  2. seedling embryo fertilisation pollination
  3. pollination, Fertilisation embryo seedling
  4. Embryo, seedling pollination Fertilisation

Question:3 Fruits are formed from

  1. Stamen
  2. Stigma
  3. Ovule
  4. Ovary

Question:4 Character transmitted from parents to Offspring are present in

  1. Cytoplasm
  2. Ribosome
  3. Golgi bodies
  4. Genes

Question:5 Character that are transmitted from parents to Offspring during reproduction shown

  1. Only similarities with parents
  2. Only variations with parents
  3. Both similarities and variations with parents
  4. Neither similarities nor variations

Question:6 Feature of reproduction that is common to Ameba Spirogyra and yeast is that

  1. They reproduce asexually
  2. they are all Unicellular
  3. they reproduce only sexually
  4. they are all Multicellular

Question:7 In spirogyra asexual reproduction takes place by

  1. Breaking up of filaments into smaller bits
  2. Division of a cell into two cells
  3. Division of a cell into many cells
  4. Formation of young cells from Older cells

Question:8 The ability of a cell to divide into several cells during reproduction in plasmodium is called

  1. Budding
  2. Reduction division
  3. Binary fission
  4. Multiple fission

Question:9 The number of Chromosomes in parents and Offspring of a particular species remains constant due to

  1. Doubling of Chromosomes after Zygote formation
  2. Halving of Chromosomes during gamete formation
  3. Doubling of Chromosomes after gamete formation
  4. Halving of Chromosomes after gamete formation

Question:10 Vegetative propagation refers to formation of new plants from

  1. stem, roots and flowers
  2. stem, roots and leaves
  3. stem, flowers and fruits
  4. stem, Leaves and flowers

Question:11 Length of pollen tube depends on the distance between

  1. Pollen grain and upper surface of stigma
  2. pollen grain on upper surface of stigma and Ovule
  3. Pollen grain in anther and upper surface of stigma
  4. upper surface of stigma and lower part of style

Question”12 In figure the parts A, B and C are sequentially

  1. Cotyledon, plumule and radicle
  2. plumule, radicle and cotyledon
  3. plumule, cotyledon and radicle
  4. Radicle, cotyledon and plumule

Question:13 Reproduction is essential for living Organism in order to

  1. Keep the Individual Organism alive
  2. Fulfil their requirement
  3. Maintain growth
  4. Continue the species generation after generation

Question;14 During adolescence, several changes Occur in the human body, mark one change associated with sexual maturation in boys

  1. Loss of milk teeth
  2. Increase in height
  3. cracking of voice
  4. Weight gain

Question:15 In human females, an event that reflects onset of reproductive phase is

  1. Growth of body
  2. Changes in hair pattern
  3. Changes in voice
  4. Menstruation

Question:16 In human males, the testes lie in the scrotum because , t helps in the

  1. Process of making
  2. formation of sperm
  3. Easy transfer of gametes
  4. all of these

Question:17 which among the following diseases is not sexually transmitted?

  1. Syphillis
  2. Hepatitis
  4. Gonorrhoea

Question:18 IUCD is for

  1. Vegetative Propagation
  2. Contraception
  3. Increasing fertility
  4. Avoiding Miscarriage

Question:19 When an animal is cut into pieces and each pieces grows into a complex Organism what is the process?

  1. Budding
  2. Fragmentation
  3. Spore formation
  4. Regeneration

Question:20 Growing foetus derive Mutrition from Mothers blood through

  1. Uterus
  2. Fallopian tube
  3. Placenta
  4. Cervix
Q,No Answer Q,No Answer

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