Genes & DNA
What is a gene?
This segment of DNA codes for a specific protein or trait.
What is phenotype?
The physical expression of your genes is called this.
What is evolution?
The gradual change in species over generations is called this.
What is sexual reproduction?
This type of reproduction involves 2 parents and creates variation.
What are earlobes?
This facial feature can be attached or free.
What are chromosomes?
These thread-like structures carry genetic material in the nucleus.
What are brown eyes?
A type of Phenotype
What are fossils?
These preserved remains help scientists study ancient life.
What is asexual reproduction?
This type of reproduction creates clones.
What is tongue rolling?
This trait lets some people fold their tongue.
What are alleles?
You inherit one of these versions of a gene from each parent.
What is genotype?
The term for your actual allele combination, like Bb or bb.
What is a phylogenetic tree?
This diagram shows how species are related through evolution.
What is regeneration?
A starfish regrowing a limb is an example of this.
What is a widow’s peak?
A V-shaped hairline is known as this.
What is homozygous?
If you have two identical alleles, your genotype is called this.
What is a recessive allele?
This allele is hidden when paired with a dominant allele.
What is a common ancestor?
Similar bone structures in different animals suggest this.
What is genetic diversity?
The main benefit of sexual reproduction for a species.
What are freckles?
These small brown spots on the skin are inherited.
What is 46 (or 23 pairs)?
The total number of chromosomes in a human body cell.
What is heterozygous?
A person with genotype Bb is called this.
What are mutations?
Random changes in DNA that drive genetic variation.
The main benefit of sexual reproduction for a species.
A bacterium dividing into two is this process.
What is hitchhiker’s thumb?
This trait causes the thumb to bend backward oddly.