Living cells are composed of (4)
nucleic acids, proteins, carbs, and lipids
collection of proteins a cell makes is it’s
proteome, which determines structure and function
genes encode ______ that are units within proteins
polypeptides
transcription produces
mRNA
translation produces
polypeptides
Which is NOT constituent of a cell’s proteome?
a. enzyme
b. motor protein
c. receptor in plasma membrane
d. mRNA
d. mRNA
Functional product of most genes is
a. DNA
b. mRNA
c. polypeptide
d. none of the above
c. polypeptide
Function of genetic code
a. promote transcription
b. specify amnio acids within polypeptide
c. alter DNA sequence
d. none
b. specify amnio acids within polypeptide
direct result of transcription is synthesis of
a. DNA
b. RNA
c. polypeptide
d. all of the above
b. RNA
genetics is studied at what levels
molecular, cellular, organism, and population
genetic variation is from
trait variations and environment
_______ cells are diploid and ______ are haploid
somatic, gametes
evolution is the genetic change from
one populations generation to next
what levels of gene expression can be observed?
a. molecular and cellular
b. organism
c. population
d. all
d. all
variation in traits may be attributable to
a. mutations
b. altered chromosome structure
c. variation in chromosome number
d. all
d. all
human skin = 46 chrom. human sperm =
a. 23
b. 46
c. 92
d. none correct
a. 23
Evolutionary change from nat select results in species with
a. greater complexity
b. less complexity
c. greater reproductive success
d. ability to survive longer
c. greater reproductive success
Their results are compared to determine sci principles that apply broadly to other species
model organisms
3 parts of genetics
transmission, molecular, population
NOT a model organism
a. mouse
b. bacteria
c. yeast
d. squirrel
d. squirrel
Focuses on biochem understanding of hereditary material
molecular genetics
explores inheritance patters of traits
transmission genetics
concerned with genetic variation and its role in evolution
population genetics
person studying rate of transcription of a gene works in
a. molecular genetics
b. transmission genetics
c. population genetics
d. none
a. molecular genetics