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Flashcards on Mendelian Genetics
Click on the flashcard to see the answer
Who is known as the father of genetics?
Gregor Mendel
What are the basic units of inheritance?
Genes
What is the Law of Segregation?
Each individual has two alleles for each trait, and these alleles segregate during gamete formation.
What is the Law of Independent Assortment?
The alleles of different genes segregate independently of one another during gamete formation.
What is a dominant allele?
An allele that masks the expression of the other allele in a heterozygous individual.
What is a recessive allele?
An allele that is masked by the dominant allele and only expressed in a homozygous recessive individual.
What is a genotype?
The genetic makeup of an organism, represented by the combination of alleles.
What is a phenotype?
The observable traits or characteristics of an organism.
What is a Punnett square?
A diagram used to predict the possible outcomes of a genetic cross.
What is a monohybrid cross?
A genetic cross between individuals that differ in only one trait.
What is a dihybrid cross?
A genetic cross between individuals that differ in two traits.
What is a test cross?
A cross between an individual with an unknown genotype and a homozygous recessive individual.
What are the possible genotypes of offspring from a monohybrid cross between two heterozygous individuals?
1:2:1
What is the probability of rolling a six on a fair six-sided die?
1/6
What is the probability of flipping a coin and getting heads?
1/2
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Test Your Knowledge
Who is known as the father of genetics?
a) Gregor Mendel
b) Charles Darwin
c) Albert Einstein
d) Isaac Newton
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What is a Punnett square used for?
a) Predicting the weather
b) Predicting the possible outcomes of a genetic cross
c) Solving mathematical equations
d) Painting a picture
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What is the Law of Independent Assortment?
a) The alleles of different genes segregate independently of one another during gamete formation
b) The alleles of the same gene segregate independently of one another during gamete formation
c) The alleles of different genes always stay together during gamete formation
d) The alleles of the same gene always stay together during gamete formation
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What is the probability of rolling a six on a fair six-sided die?
a) 1/6
b) 1/2
c) 1/3
d) 1/4
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What is a recessive allele?
a) An allele that is masked by the dominant allele and only expressed in a homozygous recessive individual
b) An allele that masks the expression of the other allele in a heterozygous individual
c) An allele that is always expressed regardless of the presence of a dominant allele
d) An allele that causes a mutation in the DNA
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What is the genotype of an individual with two dominant alleles?
a) Homozygous recessive
b) Heterozygous
c) Homozygous dominant
d) None of the above
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What is the phenotype of an individual with the genotype Aa?
a) The same as the individual with genotype AA
b) Different from the individual with genotype AA
c) Not determined by the genotype
d) None of the above
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What is the probability of flipping a coin and getting tails?
a) 1/6
b) 1/2
c) 1/3
d) 1/4
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What does a monohybrid cross involve?
a) Individuals that differ in only one trait
b) Individuals that differ in two traits
c) A cross between two homozygous individuals
d) A cross between two heterozygous individuals
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What is the Law of Segregation?
a) Each individual has one allele for each trait
b) Each individual has two alleles for each trait, and these alleles segregate during gamete formation
c) Each individual has three alleles for each trait
d) Each individual has four alleles for each trait
Check Answers
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