Variation (OCR A-Level Biology A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is intraspecific variation?
What is intraspecific variation?
Differences within the same species
What is a phenocopy?
What is a phenocopy?
Environment altering phenotype to mimic genes
Why do Himalayan rabbits develop black fur in cold temperatures?
Why do Himalayan rabbits develop black fur in cold temperatures?
Enzyme for black fur is temperature-dependent
Which statement describes discontinuous variation?
Which statement describes discontinuous variation?
Distinct categories with no intermediates
What type of inheritance controls continuous variation?
What type of inheritance controls continuous variation?
Polygenic inheritance
When does crossing over occur during meiosis?
When does crossing over occur during meiosis?
Prophase I between non-sister chromatids
When is a recessive allele expressed in the phenotype?
When is a recessive allele expressed in the phenotype?
Only when present in homozygous state
Which process does NOT generate variation in meiosis?
Which process does NOT generate variation in meiosis?
DNA replication in interphase
What happens without variation in a species?
What happens without variation in a species?
Adaptation is lost and extinction occurs
What type of data is collected for continuous variation?
What type of data is collected for continuous variation?
Quantitative data that can be measured