Genetics Flashcards
What is crossing-over?
Crossing over is the swapping of genetic information.
What are sex-link traits?
Sex-link traits are genetic traits on the X chromosome.
What are the four amino acid that make up DNA?
Cytosine, Guanine, Adenine and Thymine.
Can RNA contain Thymine (T)
RNA contains U instead of T.
What is codon?
Codon refers to the three amino acids that are read by ribosomes at a time.
What are the two sides of a chromosomes?
Chromatids
What is a centromere?
Centromeres hold chromatids together
What are malfunctions that happen early in development?
Nondisjuctions
What is the name for men with an extra X chromosome?
Kline syndrome carriers
What causes Turners Sundrom?
When a girl only has one X chromosome
What is a Punnett square?
A mathematical way to predict a pairing’s possible offspring.
What is a monohybrid cross?
One trait being crossed.
Who is Gregor Mendal
He was a monk and is the first human to record and recognize genetics.
What is an allele?
An allele is a single gene trait
What is monohybrid breeding?
Breeding between two hybrids of the same genotype
What is true breeding?
Breeding between two organisms with homozygous traits.
Selective Breeding
The mixing of desired traits to get and offspring with both characteristics
A gene that masks the expression of another
Estistatic
Polygenic
Genes that interact
A cooperation of separate genes to make something new
Complementary interaction
