Genetics 1
The characteristics of an organism.
What are traits?
This gene always shows is self over a recessive gene
What is a dominant gene?
All human cells contain _________ chromosomes
What is 46?
a capital letter represents what type of trait?
What is a dominant trait?
A change or error in the DNA code
What are mutations?
The passing of traits from parent to offspring is called.
What is heredity?
This describes two of the same copies of a gene
What is homozygous?
One of two or more forms of a particular gene
what is an allele?
Heterozygous parents are crossed. What percent of offspring will be homozygous dominant?
What is 25%?
The effects of mutations can be...
WHat is Good, bad, or neutral
What does DNA stand for?
Deoxyribonucleic Acid
This describes different alleles for the same trait.
what is heterozygous?
Where are chromosomes located?
What is the nucleus?
What percent of the offspring of a cross of heterozygous parents will be homozygous?
What is 50%?
What is sickle cell anemia? (among others)
Chromosomes are made up of _______.
What is DNA?
Shows possible gene combinations.
What is a Punnett square?
genes of a trait that is hidden when the dominant gene is present
What is a recessive gene?
What percent of the offspring of a cross of heterozygous parents will be heterozygous?
What is 50%?
When a dog with black fur and a dog with white fur make a dog with grey fur it is an example of
What is incomplete dominance?
Sequence of nucleotides in DNA.
Gene
What DNA coils into when cells are replicating
Chromosones
What percentage of two homozygous parents will be heterozygous?
What is zero percent?
What percent of the offspring of heterozygous parents will be homozygous recessive?
What is 25%
When a dog with black fur and a dog with white fur make a dog with back and white spots it is an example of
co-dominance