Sexual Reproduction (Rhizopus) (Leaving Cert Biology): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
Which strain types can undergo sexual reproduction in Rhizopus?
Which strain types can undergo sexual reproduction in Rhizopus?
Plus (+) and minus (-) strains
What is chemotropism?
What is chemotropism?
Growth response to chemicals
How are hyphae attracted to one another during sexual reproduction?
How are hyphae attracted to one another during sexual reproduction?
Hyphae release chemicals
What is each swelling called when nuclei move into it?
What is each swelling called when nuclei move into it?
Progametangium
What are progametangia called after cross walls form behind them?
What are progametangia called after cross walls form behind them?
Gametangia
What happens during fertilisation in Rhizopus?
What happens during fertilisation in Rhizopus?
Two haploid () nuclei join
What is the ploidy of the zygote formed after fertilisation?
What is the ploidy of the zygote formed after fertilisation?
Diploid ()
What forms when a tough wall develops around the zygote?
What forms when a tough wall develops around the zygote?
Zygospore
What happens to the parent hyphae after the zygospore forms?
What happens to the parent hyphae after the zygospore forms?
They die
What process does the diploid zygote undergo when the zygospore germinates?
What process does the diploid zygote undergo when the zygospore germinates?
Meiosis
What does the new hypha form after germination?
What does the new hypha form after germination?
A sporangium
Why is wind dispersal of zygospores advantageous?
Why is wind dispersal of zygospores advantageous?
Wind transports them to better conditions