33 Questions
What is the term for an alternative form of a gene?
Allele
In genetics, what is the term for the specific position on a chromosome where a particular gene is located?
Locus
What do we call the genetic make-up of an individual for a specific gene or as a whole?
Genotype
What is the term for having only one copy of a gene?
Hemizygous
What do we call the second filial generation produced when F1 individuals are self-crossed with each other?
F2
What is the term for an allele whose expression overpowers the effect of a second form of the same gene?
Dominant
Which term refers to parents that are homozygous for every trait?
True breed
In genetics, what do we call an observable trait of an individual resulting from one (or more) specific genes?
Phenotype
What is the term for where two alleles for a given gene are different from each other?
Heterozygous
What is the term for an alternative form of a gene?
Allele
What is the study of genetic variation within and among populations known as?
Population genetics
What is the term for a non-human species used in the laboratory to help scientists understand biological processes?
Model organisms
What do genes hold information for?
All of the above
What is the term for where two alleles for a given gene are different from each other?
Heterozygous
What do traits result from?
Proteins
In a genetic cross, what is the term for a square diagram used to predict the genotypes of offspring?
Punnett square
What did Gregor Mendel find to be the principle where alleles segregate independently during gamete formation?
Principle of independent assortment
What contributes to genetic variation among humans?
Multiple alleles
Which of the following is a dominant trait in humans?
Almond-shaped eyes
What is the result of the principle of independent assortment?
New combinations of genes
What happens during meiosis I?
Different homologous pairs line up in random orientations
What does a person with one copy of the normal tyrosinase gene produce?
Melanin and brown eyes
Which trait is dominant to hitchhiker thumb?
Straight thumb
Astigmatism is an example of a dominant trait. What is astigmatism?
A visual impairment
Familial hypercholesterolemia is an example of a dominant trait. What does it refer to?
An inherited disorder affecting cholesterol levels
Which is an example of a trait resulting from X-linked dominant inheritance?
Fragile X syndrome
What is the term for the inability to distinguish between certain colors due to genetic factors?
Colorblindness
Which term refers to the condition where genes on the same chromosome are inherited together?
Linkage
What is the term for traits that are controlled by one gene and have two alleles, one of which is completely dominant?
Mendelian traits
What is the term for the genes being on the sex chromosomes and therefore linked to gender?
Sex-linked genes
What contributes to the rarity of Y-linked inheritance?
Small number of genes carried on the Y chromosome
Which genetic condition is an example of X-linked dominant inheritance and is characterized by large ears, forehead, and learning disabilities?
Fragile X syndrome
What do we call an allele whose expression overpowers the effect of a second form of the same gene?
Dominant allele
Test your knowledge of genetics with this quiz covering basic concepts such as genes, alleles, chromosomes, traits, loci, and genotypes.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
