CSEC Biology  /  Reproduction  /  Sexual and asexual reproduction

start here · about 20 minutes

Sexual and asexual reproduction

The notches along these leaves are growing tiny new plants. Each one drops off, roots, and grows into a copy of its parent. One parent, no flowers, no seeds: that is asexual reproduction. Making a new individual from two sex cells is sexual reproduction.

By the end of this page you can

  • Give Caribbean examples of asexual reproduction
  • Compare sexual and asexual reproduction
  • Put the stages of sexual reproduction in order
  • Define gamete, fertilisation, zygote and clone
  • Answer exam questions on the two kinds of reproduction

Goals tick themselves off as you try the activities below.

Pale green fleshy leaves with rows of tiny plantlets growing all along their notched edges.

Photo: EnrichIndegi, CC BY-SA 4.0, via Wikimedia Commons. Cropped (date stamp removed), JPEG q70.

Mother of thousands, a _Bryophyllum_. Its Caribbean relative, leaf of life, grows new plants from the notches of a fallen leaf in the same way.

How often it shows up in past papers

Paper 118 of 25 papers
Paper 2[N] of [10] years placeholder

Paper 1 counts come from our past-paper bank of CSEC Biology Paper 1s. Paper 2 is not included yet.

asexual all around you

One parent, many copies

Farmers use asexual reproduction every day, because every new plant is a copy of a good parent. Tap each card.

compare them

Sexual or asexual?

Each feature belongs to one kind of reproduction. Tap a feature and the centre tells you which.

Which?tap a feature

Sexual or asexual?

Tap a feature on the list to see which kind of reproduction it belongs to.

Variation matters: if a disease strikes a field of clones, every plant is equally at risk. A varied population is more likely to have some survivors.

your turn

From gametes to offspring

Put the stages of sexual reproduction in order. Drag or tap each card into its slot.

What must each parent make first?

words that earn marks

Seven terms to know cold

Say what each term means before you flip the card. Comparison questions reward the exact words.

check yourself

Six quick questions, then a real one

Pick an answer to see why it’s right or wrong.

Which of these is an example of asexual reproduction?

The offspring of asexual reproduction are

Why do offspring from sexual reproduction show variation?

A farmer grows a field of identical banana plants from suckers. What is the main risk?

The fusion of a male gamete and a female gamete is called

Which is an advantage of asexual reproduction?

exam style · 3 marks

State THREE differences between sexual and asexual reproduction.

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Practice questions are written by My V.I.P. Academy. They are not official CXC papers.

Sexual and asexual reproduction · CSEC Biology · Reproduction.