Worksheets10BD 11-1: Mendelian Genetics
Total questions: 11
Worksheet time: 6mins
How many alleles do you inherit from EACH parent for a specific trait?
1
2
The study of heredity is called ____.
genetics
biology
chemistry
herediology
Which of the following best describes the difference between genotype and phenotype?
Genotype refers to observable physical traits, while phenotype refers to the genetic makeup of an organism.
Genotype refers to the genetic makeup of an organism, while phenotype refers to observable physical traits.
Genotype and phenotype both describe the physical appearance of an organism.
Genotype and phenotype both describe the DNA sequence of an organism.
A mouse has brown fur and is heterozygous for fur color. Which is likely its genotype?
Bb
BB
brown fur color
BT
Which of the following best describes the difference between homozygous and heterozygous genotypes?
A homozygous genotype has two identical alleles for a trait, while a heterozygous genotype has two different alleles for a trait.
A heterozygous genotype has two identical alleles for a trait, while a homozygous genotype has two different alleles for a trait.
Homozygous and heterozygous genotypes both contain only dominant alleles.
Homozygous and heterozygous genotypes both contain only recessive alleles.
What was Gregor Mendel's greatest contribution to genetics?
He determined that genes are pass on from parents to offspring.
He devised the Punnett square as a way for modeling how alleles combine.
He was able to apply his laws to entire populations.
He was able to describe the frequency of alleles in a population.
Segments of DNA that code for traits are called ____.
alleles
proteins
genes
Which of the following is a PHENOTYPE for flower color in pea plants?
PP
purple
Pp
pp
Which combination of alleles would support that the organism has the dominant form of the expressed trait?
bb
Bb
black fur
white fur
Which statement below describes RECESSIVE alleles?
expressed when at least one is present
only expressed when 2 are present
Which statement correctly identifies the difference between a gene and an allele?
A gene is a section of DNA, while an allele is the letter that represents the gene.
An Allele is a section of DNA, while a gene is the letter that represents the allele.
A gene specifies the trait, while an allele specifies the form of the gene takes.
An allele specifies the trait, while a gene specifies the form the allele takes.
