Genetics
The passing of traits from parents to offspring is called _________.
What is heredity?
This tool helps predict the probability of traits in offspring.
What is a Punnett square?
The molecule that carries genetic information.
What is DNA?
Eye color is an example of this type of trait.
What is an inherited trait?
Differences in traits among individuals of a species are called _____.
What is variation?
The different forms of a gene are known as _________.
What are alleles?
In a cross between TT and tt, all offspring will have this genotype.
What is Tt?
A section of DNA that codes for a specific trait.
What is a gene?
Learning to play the piano is an example of this type of trait.
What is an acquired trait?
Variation occurs because of the process of _____.
What is sexual reproduction (or genetic recombination)?
An organism with two identical alleles for a trait is called _____.
What is homozygous?
If tall (T) is dominant and short (t) is recessive, what percentage of offspring from Tt x Tt are short?
What is 25%?
The shape of a DNA molecule is known as the _____.
What is a double helix?
Traits that result from genes passed from parents are called _____.
What are inherited traits?
A permanent change in DNA is called a _______.
What is a mutation?
The physical appearance of a trait is called the _____.
What is the phenotype?
The combination of alleles that determines a trait (like Tt or TT).
What is a genotype?
DNA is made up of smaller units called ______.
What are nucleotides?
Scars and muscle size are examples of these traits.
What are acquired traits?
Offspring from sexual reproduction are genetically _______.
What are unique/different from parents?
The genetic makeup or combination of alleles is called the _____.
What is the genotype?
When neither allele is completely dominant and a blend of traits appears, it's called _____.
What is incomplete dominance?
The four nitrogen bases in DNA are _____.
What are adenine, thymine, cytosine, and guanine?
Freckles and dimples are determined by ______.
What are genes?
This process during meiosis increases variation in gametes.
What is crossing over?