Download App

Reproduction in organisms Biology - Reproduction in organisms

Uttarakhand Board (UBSE) - STD 12 Science - Biology (Uttarakhand - English Medium). 560 questions in this chapter.

Question types

Reproduction in organisms question types

560 questions across 5 question groups — pick any mix to generate a Biology paper with step-by-step answer keys.

560
Questions
5
Question groups
5
Question types
Sample Questions

Reproduction in organisms questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 3M.C.Q (1 Marks)1 Mark
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
    $24, 12, 12.$
  • ✓
    $12, 24, 24.$
  • D
    $24, 12, 24.$

Answer: C.

View full solution →
Q 4M.C.Q (1 Marks)1 Mark
The terms homothallic and monoecious are used to denote:
  • A
    Unisexual condition.
  • ✓
    Bisexual condition.
  • C
    Staminate flowers.
  • D
    Pistillate flowers.

Answer: B.

View full solution →
Q 5M.C.Q (1 Marks)1 Mark
A few statements with regard to sexual reproduction are given below:
  1. Sexual reproduction does not always require two individuals.
  2. Sexual reproduction generally involves gametic fusion.
  3. Meiosis never occurs during sexual reproduction.
  4. External fertilisation is a rule during sexual reproduction.
Choose the correct statements from the options below:
  • A
    $ii$ and $iii$
  • B
    $i$ and $iv$
  • ✓
    $i$ and $ii$
  • D
    $ii$ and $iv$

Answer: C.

View full solution →
Q 132 Marks Questions2 Marks
Examine a few flowers of any cucurbit plant and try to identify the staminate and pistillate flowers. Do you know any other plant that bears unisexual flowers?
View full solution →
Q 173 Marks Question3 Marks
Identify each part in a flowering plant and write whether it is haploid (n) or diploid (2n).
  1. Ovary .
  2. Anther .
  3. Egg .
  4. Pollen .
  5. Male gamete .
  6. Zygote .
View full solution →
Q 183 Marks Question3 Marks
What is a bisexual flower? Collect five bisexual flowers from your neighbourhood and with the help of your teacher find out their common and scientific names.
View full solution →
Q 255 Marks Questions5 Marks
Do all the gametes formed from a parent organism have the same genetic composition? Analyse the situation with the background of gametogenesis and provide suitable explanation.
View full solution →
Browse all question groups ↑

Generate a Reproduction in organisms paper free

Pick question groups from the list above, set marks and difficulty, and export a branded PDF with step-by-step answer keys. First 3 chapters free — no signup.

Download App
Generate Paper FreeAll Biology chapters