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 is Mendel's first law also known as?
What is Mendel's first law also known as?
Law of segregation
What separates during gamete formation according to Mendel's first law?
What separates during gamete formation according to Mendel's first law?
Pairs of alleles
How many alleles for each gene does each gamete receive?
How many alleles for each gene does each gamete receive?
One
In plant height, if T codes for tall and t for short, what does a gamete carry?
In plant height, if T codes for tall and t for short, what does a gamete carry?
Either T or t, never both
Where are alleles located that undergo segregation?
Where are alleles located that undergo segregation?
On homologous chromosomes
Which cellular process provides the physical basis for Mendel's law of segregation?
Which cellular process provides the physical basis for Mendel's law of segregation?
Meiosis
What does Mendel's law of independent assortment state about different genes?
What does Mendel's law of independent assortment state about different genes?
They sort independently during reproduction
What does independent assortment create in offspring?
What does independent assortment create in offspring?
New combinations of alleles
How many different gamete types does an organism with genotype AaBb produce?
How many different gamete types does an organism with genotype AaBb produce?
Four types
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
What is a dihybrid cross?
What is a dihybrid cross?
Studying two characteristics simultaneously
What modern application do Mendel's laws enable scientists to do?
What modern application do Mendel's laws enable scientists to do?
Predict outcomes of genetic crosses