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WorksheetsChromosomes, Genes, Alleles, & Traits
Total questions: 12
Worksheet time: 3600secs
What is Gregor Mendel's nickname?
The Priest of Peas
The Father of Genetics
The Dad of DNA
The Grandfather of Genes
In genetics what is meant by 'a cross'?
When the DNA of one organism's sex cell combines with the DNA of another organisms's sex cell and the traits of the resulting offspring are observed
When an allele from one parent is changed during crossing over in meiosis
When Gregor Mendel got mad with his pea plant results
When the genes of an individual are studied to see which traits they have
What is the definition of Genotype?
The diagram that shows all the chromosomes of an individual
The combination of alleles that control that an individual has for a particular trait
How many genes on one chromosome
How a trait is expressed (what it looks like or what it does)
Hair color and eye color are examples of a person's....
recessive traits
dominant alleles
genotype
phenotype
When an organism has two alleles at a particular locus that are different, the organism is called
purebred
dominant
heterozygous
recessive
If a pea plant were homozygous recessive for height, how would it's genotype be represented?
Tt
TT
tt
tT
The passing of traits from parents to offspring is known as....
hierarchy
heredity
traits
genetics
What is the definition of Phenotype?
The diagram that shows all the chromosomes of an individual
The combination of alleles that control that an individual has for a particular trait
How many genes on one chromosome
How a trait is expressed (what it looks like or what it does)
Which of the following statements are TRUE? (3)
An allele is a form of a gene
Dominant alleles are represented by uppercase letters
You need two recessive alleles to have a recessive trait
Homozygous is when two chromosomes with similar traits line up side by side on the spindle during Metaphase II
You can inherit two forms a gene from your mom, and two forms of the same gene from your dad
If tongue rolling is a dominant trait (R), which of the following statements are true? (3)
An individual who can roll their tongue may have the genotype Rr
An individual who can roll their tongue may have the genotype RR
An individual who can roll their tongue may have the genotype rr
An individual who cannot roll their tongue will not have a dominant allele
An individual with the genotype Rr will be able to partially roll their tongue
What is a sex-linked trait?
A trait that is only inherited by boys
A trait that is only inherited by girls
A trait that is only found on sex chromosomes
A trait that determines an individuals' sex
Different alleles are...
slight differences in the DNA of a gene
slight different shapes of a certain protein
determined by which parent has the strongest genes
created when a sperm fertilizes an egg
