Mendel's First and Second Laws (Leaving Cert Biology): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does Mendel's Law of Segregation state about alleles during gamete formation?
What does Mendel's Law of Segregation state about alleles during gamete formation?
They separate, each gamete gets one
How many alleles for each gene does each gamete receive according to the Law of Segregation?
How many alleles for each gene does each gamete receive according to the Law of Segregation?
Only one allele
Where are alleles located that explains the chromosomal basis of segregation?
Where are alleles located that explains the chromosomal basis of segregation?
On homologous chromosomes
During which process do homologous chromosomes separate, causing segregation?
During which process do homologous chromosomes separate, causing segregation?
Meiosis
What does the Law of Independent Assortment state about different genes?
What does the Law of Independent Assortment state about different genes?
They sort independently during gamete formation
What does independent assortment create in offspring?
What does independent assortment create in offspring?
New combinations of alleles
What gamete types are produced by an organism with genotype AaBb?
What gamete types are produced by an organism with genotype AaBb?
AB, Ab, aB, ab
What is the expected ratio of gamete types when two genes assort independently?
What is the expected ratio of gamete types when two genes assort independently?
1:1:1:1
Why do different genes sort independently during meiosis?
Why do different genes sort independently during meiosis?
They're on different chromosome pairs
What do dihybrid crosses study?
What do dihybrid crosses study?
Two characteristics simultaneously
What cellular process is the basis for both of Mendel's laws?
What cellular process is the basis for both of Mendel's laws?
Chromosome behaviour during meiosis
What can Mendel's laws be used to calculate in breeding experiments?
What can Mendel's laws be used to calculate in breeding experiments?
Probability of specific genetic outcomes