17.1 - Monohybrid Inheritance Flashcards
Essential genetics vocabulary Monohybrid crosses in genetic diagrams and Punnett squares
What is a gene?
Sequence of bases on DNA coding for a protein
What is an allele?
Different versions of the same gene
What is a genotype?
Organism’s genetic makeup (alleles)
What is a phenotype?
Organism’s physical characteristics
What is a dominant allele?
Allele expressed even with one copy
What is a recessive allele?
Allele expressed only when homozygous
What is a locus?
Specific position of a gene on a chromosome
What is homozygous?
Two identical alleles for a trait
What is heterozygous?
Two different alleles for a trait
What is monohybrid inheritance?
Transmission of one gene from parents to offspring
What is the F1 generation?
Offspring of homozygous dominant and recessive parents
What is the F2 generation?
Offspring of two heterozygous F1 individuals
What is a Punnett square?
Grid representing a monohybrid cross
What are the steps to use a Punnett square?
State parent phenotypes
How do you calculate the percentage of offspring phenotypes?
Use Punnett square results and calculate percentages
