The following questions refer to sexual reproduction in both flowering plants and humans - Leaving Cert Biology - Question 6 - 2017
Question 6
The following questions refer to sexual reproduction in both flowering plants and humans.
(a) Which types of cell division occur during production of the female gam... show full transcript
Worked Solution & Example Answer:The following questions refer to sexual reproduction in both flowering plants and humans - Leaving Cert Biology - Question 6 - 2017
Step 1
Which types of cell division occur during production of the female gametes in flowering plants and in humans?
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Answer
In flowering plants: Meiosis followed by mitosis.
In humans: Meiosis.
Step 2
Give the precise location of the production of the female gametes.
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Answer
In flowering plants: Embryo sac (allow ovule).
In humans: Graafian follicle (allow ovary).
Step 3
Give the precise location of fertilisation under normal circumstances.
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Answer
In flowering plants: Embryo sac (allow ovule).
In humans: Oviduct (fallopian tube).
Step 4
Name the next stage of development following formation of the zygote.
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Answer
In flowering plants: Embryo.
In humans: Morula.
Step 5
Give an advantage and a disadvantage of sexual reproduction in organisms.
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Answer
Advantage: Increased variation (or described).
Disadvantage: Requires two parents (or difficulty in finding a mate) or longer (or more complex) life cycle (or to maturity).
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