alleryStart learning →The female reproductive whorl of a flower is the
- calyx
- corolla
- androecium
- gynoecium
Show answer and solution
Correct answer: D. gynoecium
Gynoecium = female whorl (carpels).
Androecium = male (stamens).
Calyx = sepals; corolla = petals.
MP Board Class 12 (MPBSE) Reproduction In Organisms — practice questions
Explore 35 free Reproduction In Organisms questions in MP Board Class 12 (MPBSE) Biology. Open each question or exercise to read its content, reference answers and available explanation.
Practise Reproduction In Organisms with Quill →Reproduction In Organisms questions and exercises with answers
Showing questions 1–30 of 35.
The female reproductive whorl of a flower is theRead the answer and worked solution →A typical angiosperm embryo sac hasRead the answer and worked solution →The tough outer wall (exine) of pollen grains is made ofRead the answer and worked solution →Double fertilisation in angiosperms producesRead the answer and worked solution →Pollination of grasses occurs mainly throughRead the answer and worked solution →Self-incompatibility is a mechanism that preventsRead the answer and worked solution →Microsporogenesis (pollen formation) is initiated when:Read the answer and worked solution →The mature embryo sac (female gametophyte) in flowering plants typically has:Read the answer and worked solution →Pollination is best defined as the transfer of pollen from:Read the answer and worked solution →Pollination by INSECTS is called:Read the answer and worked solution →In a typical dicot embryo, the number of cotyledons is:Read the answer and worked solution →In the fruit, the OVARY WALL develops into the:Read the answer and worked solution →Parthenocarpy refers to:Read the answer and worked solution →Sort limbs by shared ancestryRead the answer and worked solution →Complete the chain from chemistry to lifeRead the answer and worked solution →True or false: variation and fitnessRead the answer and worked solution →Which process is this?Read the answer and worked solution →Darwin and selectionRead the answer and worked solution →True or false: how new species appearRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Tap every factor the chapter says can lead to new speciesRead the answer and worked solution →Order the sequence the chapter sets outRead the answer and worked solution →Reading the mechanisms backRead the answer and worked solution →True or false: evidence for evolutionRead the answer and worked solution →Chance or selection?Read the answer and worked solution →OriginsRead the answer and worked solution →Flip and pair: process with driverRead the answer and worked solution →
Worked practice questions
A typical angiosperm embryo sac has
- 3 cells, 4 nuclei
- 5 cells, 6 nuclei
- 7 cells, 8 nuclei
- 9 cells, 10 nuclei
Show answer and solution
Correct answer: C. 7 cells, 8 nuclei
7 cells, 8 nuclei: 3 antipodals, 1 central cell with 2 polar nuclei, 2 synergids, 1 egg.
The Polygonum-type embryo sac, the most common form.
The tough outer wall (exine) of pollen grains is made of
- cellulose
- lignin
- sporopollenin
- chitin
Show answer and solution
Correct answer: C. sporopollenin
Sporopollenin — the most resistant biological material known.
Survives strong acids, alkalis, and high temperatures.
Fossil pollen lasts millions of years.
How to practise
- Choose a Reproduction In Organisms question and try to work out your answer.
- Open the question to check the correct answer and read its worked solution.
- Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.