Homologous Chromosomes and Meiosis (OCR A-Level Biology A): Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
How many homologous pairs of chromosomes do humans have?
How many homologous pairs of chromosomes do humans have?
23 pairs
What defines a homologous pair of chromosomes?
What defines a homologous pair of chromosomes?
Two chromosomes with same gene sequence
What chromosome number do gametes contain?
What chromosome number do gametes contain?
Haploid (n)
What structure forms when homologous chromosomes pair up during Prophase I?
What structure forms when homologous chromosomes pair up during Prophase I?
Bivalents or tetrads
What separates during Anaphase I of meiosis?
What separates during Anaphase I of meiosis?
Homologous chromosomes
Between which structures does crossing over occur during Prophase I?
Between which structures does crossing over occur during Prophase I?
Non-sister chromatids
How many cells does meiosis produce from one diploid parent cell?
How many cells does meiosis produce from one diploid parent cell?
Four genetically different haploid cells
Does DNA replication occur between Meiosis I and Meiosis II?
Does DNA replication occur between Meiosis I and Meiosis II?
No DNA replication occurs
What formula calculates possible combinations from independent assortment?
What formula calculates possible combinations from independent assortment?
2^n where n = chromosome pairs
Which THREE processes create genetic variation in meiosis?
Which THREE processes create genetic variation in meiosis?
Independent assortment, crossing over, & fertilisation