Human Genetics Reading (final) Flashcards
(42 cards)
what are the 2 opposing views on “where do these differences come from”
nativists and empiricist
what are nativists
emphasized genes and inborn characteristics, or nature
what are empiricists
focused on learning and experience, or nurture
is it nature or nurture
they are both together, it is not one or the other
what expresses genes
experience; such as stress and hormonal changes, etc
what are behavioural genetics
an interdisciplinary field of study concerned with generate contributions and individual differences in behaviour and personality
what are genes
th functional unit of heredity; they are composed of DNA and specify the structure of proteins
what are chromosomes
within every cell, rod shaped structures that carry the genes
what is DNA
the chromosomal molecule that transfers genetic characteristics by way of code instructions for the structure of proteins
what is gnome
the full set of genes in each cell of an organism (with the exception of sperm and egg cells), together with noncoding DNA located outside the genes
where are genes located
on chromosomes
where does 98.8% of our total DNA lay
outside the genes, is called junk DNA but that is quickly proving to be an inaccurate name
what form does DNA take
the DOUBLE HELIX
What are the bases in dna
ACTG
does the number of genes play a role in the complexity of the organism
not necessarily, it isn’t how many genes, but rather what those genes d
what is genome-wide association studies
trying to identify genes that cause disease in people who have them
what is linkage studies
searching for genes associated with rare disorders
what are genetic markers
DNA segments that vary considerably among individuals whose locations on the chromosome are already known and can function as a genetic landmark for a gene involved in a physical or mental condition
what are epigenetics
the study of stable changes in the expression of a particular gene that occur without changing in DNA base sequences; the Greek prefix epi means “on top of” or “in addition to”
form of mutation
does the genome stay the same
nope, mutations happen and produces various forms of genes
where do we get any mutations (gene varientients) from
our parents, but also the environment
the basic units of heredity are called
genes
what does whole-genome sequencing involve
sequencing the entire 3 billion base pares of DNA that make up the human genome
what do genetic mutations produce
inherited defects that will continue to be passed along genetic lines