Genetic Engineering Flashcards
Created by Gregor Johann Mendel.
Mendelian’s Law of Inheritance
Austrian Monk, Botanist, and Father of Genetics and Heredity.
Gregor Johann Mendel
In two different alleles, dominant trait will mask the recessive gene.
Law of Dominance
Parents with two alleles for genes will pass on one allele to each offspring. Both parents donate one allele.
Law of Segregation
Two or more traits are inherited separately from each other and don’t always occur together.
Law of Independent Assortment
Pattern of inheritance which traits do not segregate in accordance with Mendel’s law.
Non-Mendelian Inheritance
One allele is partially dominant over another allele resulting in the blending of characteristics (intermediate trait).
Incomplete Dominance
One allele is neither dominant over the other allele resulting in full trait expression.
Codominance
More than two alleles that control one gene.
Multiple Alleles
Test cross between a homozygous Type O father and a heterozygous Type A mother.
Sex Related Inheritance
Occurs when genetic traits are inherited on either the X or the chromosome.
Sex Related Inheritance
A biological process which involves the transmission of traits or characters from parents to offspring.
Sex Related Inheritance
Located on X and Y chromosomes. Can be seen in the chromosome 23.
Sex-Linked Traits
Recessive inheritance refers to genetic conditions associated with mutations in genes on the X chromosome.
X-Linked Traits
Also known as holandric inheritance, traits produced by genes located on y chromosomes. Can be difficult to detect. Can be seen in the male.
Y-Linked Traits
Observed mostly in one sex (gender). Commonly traits or characteristics in male and female.
Sex-Influenced Traits
Trait is shown in the genes of the sex chromosomes.
Sex-Linked Genes
Carries most sex-linked genes, thus mostly males are affected.
X-Chromosome
The chemical inside the nucleus of the cell that carries the genetic instructions for making living organisms.
DNA (Deoxyribonucleic Acid)
The material inside the nucleus of cells that carries genetic information.
DNA (Deoxyribonucleic Acid)
One of the threadlike “packages” of genes and other DNA in the nucleus of the cell.
Chromosomes
How many pairs of chromosomes, number of autosomes, and number of sex chromosomes do humans have?
23 Pairs of Chromosomes, 44 Autosomes, and 2 Sex Chromosomes
Cause malfunction puberty. 46 to 47 chromosome. XXY or XXX.
Trisome
A functional and physical unit of heredity passed from parent to offspring.
Genes