bio 15 Flashcards
1
Q
what is a gene?
A
region with a specific nucleotide sequence in a chromosome
2
Q
what is the particle hypthesis
A
the idea tha parents pass on discrete heritable units (genes)
3
Q
what are alternative versions of a gene called?
A
alleles
4
Q
each gene resides at a specific ____ on a specific chromosome
A
locus
5
Q
what does a dominant allele determine?
A
an organisms appearance
6
Q
what does a recessive allele determine?
A
nothing in the presense of a dominant allele
7
Q
two alleles for a haritable character ___ during gamete formation (____) and end up in different ___ (Sperm or egg cells.
A
seperate
meiosis
gametes
8
Q
many genetic disorders are inherited in a ____ manner
A
recessive
9
Q
what makes a gene a sex linked gene?
A
it is located on the X chromosome
