4 (a) The diagram shows the stages involved in the production of a human embryo - Edexcel - GCSE Biology - Question 4 - 2017 - Paper 1
Question 4
4 (a) The diagram shows the stages involved in the production of a human embryo.
egg cell
chromosomes
sperm cell
chromosomes
fertilisation
zygot e (fe... show full transcript
Worked Solution & Example Answer:4 (a) The diagram shows the stages involved in the production of a human embryo - Edexcel - GCSE Biology - Question 4 - 2017 - Paper 1
Step 1
Complete the diagram by stating the number of chromosomes found in the egg cell, the sperm cell and each cell of the embryo.
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Answer
The egg cell contains 23 chromosomes, the sperm cell also contains 23 chromosomes, and each cell of the embryo contains 46 chromosomes.
Step 2
Use the words in the box to complete the sentences.
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Answer
The sperm cells are produced by a process called meiosis. This process produces haploid cells.
