WorksheetsGenetics and DNA: Practice!
Total questions: 25
Worksheet time: 25mins
What is Mendelian genetics?
A type of genetic mutation
The study of plant genetics
The process of genetic recombination
Principles of inheritance discovered by Gregor Mendel
Explain the difference between dominant and recessive traits in Mendelian genetics.
Recessive traits are always expressed in offspring
Dominant and recessive traits have no difference in expression
Dominant traits are only expressed when two copies of the dominant allele are present
Dominant traits are expressed when at least one copy of the dominant allele is present, while recessive traits are only expressed when two copies of the recessive allele are present.
How are Punnett squares used to predict the outcome of genetic crosses?
By consulting a horoscope to predict the outcome
By flipping a coin to determine the outcome
By using a crystal ball to predict the outcome
By organizing the possible combinations of alleles from the parents.
What is a Punnett Square?
A Punnett square is a type of crossword puzzle
A Punnett square is a diagram that is used to predict an outcome of a particular cross or breeding experiment.
A Punnett square is a type of cooking technique
A Punnett square is a type of dance move
What is genetic variation and why is it important for a species?
Genetic variation is the diversity in genetic material within a population, and it is important for a species because it allows for adaptation to changing environments, increases the chances of survival, and provides the raw material for evolution.
Genetic variation is the diversity in physical appearance within a population, and it is important for a species because it leads to uniformity
Genetic variation is the result of a single gene in a population, and it is important for a species because it causes diseases
Genetic variation is the same in all individuals within a population, and it is not important for a species
What is the role of DNA and genes in inheritance and genetic traits?
They determine the color of the eyes
They control the growth of hair and nails
They contain the genetic information that determines inherited traits.
They are responsible for regulating body temperature
In the Punnett square, what is the probability for white fur?
Genotype or Phenotype: Freckles
Genotype
Phenotype
Genotype or Phenotype: ff
Genotype
Phenotype
What does DNA determine?
traits of living things
traits of nonliving things
organization of living things
Did Not Attempt
What are the names of the nitrogenous bases?
adenine
cytosine
thymine
guanine
What would the complementary DNA strand be for the sequence of bases ACCTGAATCA?
(a)
Adenine always pairs with...
thymine
cytosine
guanine
adenine
What is the shape of DNA?
double helix
single helix
squiggle
twisty step looking thing
Two different alleles
Genotype
Phenotype
Which of the following describes the Genotype Aa?
A. Homozygous
B. Heterozygous
Choose ALL examples of HETEROZYGOUS genotypes
Tt
tt
RR
Hh
Bb
Choose ALL examples of HOMOZYGOUS genotypes.
TT
hh
Rr
bb
Hh
Which of the following are examples of phenotypes for pea plants? (choose all correct answers)
purple flowers
PP
green seeds
tall stems
tt
