Heredity
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What is Heredity
The passing of genetic traits from parent to offspring
What is a dominant trait?
The trait observed in the first generation when parents that have different traits are bred
What is a Recessive trait?
A trait that reappears in the second generation after disapearing in the first generation when parents with different traits are bred
What are genes
One set of instructions for an inherited trait
What are Alleles
One of the alternative forms of a gene that governs a characteristic, such as hair color
What is a Phenotype?
An organism’s appearance or other detectable characteristic
What is a Genotype?
The entire genetic makeup of an organism; also the combination of genes for one or more specific traits
What is probability?
The likelihood that a possible future event will occur in any given instance of the event
What is meiosis?
A process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells.
Sex Chromosomes
One of the pair of chromosomes that determine the sex of an individual
What is Pedigree
A diagram that shows the occurrence of a genetic trait in the several generations of a family.
What is DNA
Deoxyribonucleic acid, a molecule that is present in all living cells and that contains the information that determines the traits that a living thing inherits and needs to live.
What is Nucleotide
In a nucleci-acid chain, a subunit that consists of a sugar.
What is Mutations
A change in the nucleotide-basevsequence of a gene or DNA molecule.
What is RNA
Ribonucleic acid, a molecule that is present in all living cells and that plays a role is protein production