The probability of two heterozygous tongue-rolling (Rr) parents having a child without the ability to roll his/her tongue, if being unable to roll one's tongue is a recessive trait?
What is 25%?
This allele that masks the effect of another allele for one gene.
What is the dominant allele?
Heterozygous defined
What is a hybrid or has one dominant allele and one recessive allele for one gene?
The number of chromosomes a gamete will have.
What is half the regular body cell? (half of what is in a somatic cell)
Letters represent this for the offspring inside the Punnett square.
What are genotypes (or alleles) of offspring?
The study of biology that involves how different traits are transmitted from one generation to the next.
What is genetics?
This cross that involves one trait where the parents are heterozygous for the trait.
What is a monohybrid cross?
Somatic cells are these
What are body cells?
Percentage of heterozygous offspring when 2 heterozygous parents are crossed for one trait.
What is 50%?
All the genes in an organism or a species.
What is a genome
Phenotype defined
What is the physical appearance of a trait?
The "ploidy" of all somatic cells
What is diploid?
Form Mendel, this was the "hidden trait" after crossing two different true breeders (like a true breeder for purple flowers with a true breeder with white flowers)
What is the recessive trait?
Genotype for pea plant that is heterozygous tall.
What is Tt?
This states that alleles of different genes (and different traits) separate during the process of meiosis to create unique gametes.
What is the Law of Independent Assortment?
Homozygous defined
What is an organism has two of the same alleles (2 dominant alleles or two recessive alleles) for a gene?
Different forms of a gene.
What are alleles?
This is the genotypic ratio seen with a monohybrid cross (Aa x Aa)
What is 1 AA : 2 Aa : 1 aa?
Capital letters show this in genetics.
What is the correct way to represent a dominant allele?
Phenotypic ratio for a monohybrid cross.
What is 3 (dominant) : 1 (recessive)?
These are examples of gametic cells.
What are sperm and egg cells?