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22 Cards in this Set

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  • Back
Genetic transmission of characteristics from parent to offspring
branch of bio that deals with Heredity; especially mechanisms and cariation of inherited characteristics among related organisms
a nitrogen containing ring structure(a base). The base is attached to 1 C atom of pentose
four bases are found 2 Purines; Adenine and Guanine and 2 pyrimidines; Thymine and Cytosine
same purines as DNA adenine and guanine, pyrimidine cytosine and uracil
DNA sequence is transferred from one organism to another and replicated by genetic engineering techniques
change in genetic composition of a population during successive generations. (phylogeny-related grps but not the same)
Charles Darwin
British naturalist who revolutionized the study of bio with his theory of evolution based on Natural Selection
Hardy-Weinberg and Castle Theorem
allele frequencies do not change from one generation to the next; equilibrium genotype frequencies do not change and are giving by the HW formula; equilibrium is attained in a single generation
Assumptions of HW theorem
No mutation, No Migration, No selection, No inbreeding, No drift, Completely random mating
Natural Selection
process in nature by which only organisms best adapted to their environment tend to survive and pass on genetic information
evolutionary formation of new biological species, usually by division of single species into 2 or more gentically distinct ones
offspring of genetically dissiimilar parents
Change in genetic composition of a population during successive generations, changes and natural selection
Gregor Mendel
founder of genetics played with Peas discovered inheritance of traits by genes
Law of Segregation
Allele pairs separate or segregate during gamete formation, and randomly unite at fertilization
Law of Independent Assortment
Allele pairs separate independently during formation of gametes, this means that traits are transmitted to offspring independently of one another
Alternative form of a gene (one member of a pair) that is located at a specific position on a specific chromosome
Haploid reproductive cells that unite during sexual reproduction to form diloid zygotes
having same number of sets of chromosomes as a germ cell or half as many as a somatic cell, having a single set of chromosomes
Having a pair of each type of chromosomes so that the basic chromosome number is doubled
Sex Chromosomes
Either of a pair of chromosomes that combine to determine thesex and sex-linked characteristics of an individual