BIO 340 EXAM 1 QUESTIONS AND VERIFIED
ANSWERS; 100% CORRECT; GRADE A
A molecule of RNA (ribonucleic acid) contains the bases _______. -
correct answer- adenine, guanine, cytosine, and uracil
A nucleotide is made of _______. - correct answer- sugar +
phosphate + nitrogen base
A recessive trait will be observed in individuals that are ________ for
that trait. - correct answer- homozygous
Additive Rule of Probability - correct answer- If two events A and B
are mutually exclusive, the probability that either of them occurs is given
by:
Probability A occurs + Probability B occurs
- a die is tossed what is the probability that the result is even
alleles - correct answer- different versions of a gene
Alternate forms of a gene are called _______. - correct answer-
alleles
,At metaphase I, homologous chromosomes are connected only at what
structures? - correct answer- chiasmata
Avery-MacLeod-McCarty experiment - correct answer- (What is the
transforming factor?) demonstrated that DNA is the genetic material
because degradation of DNA led to a cessation of bacterial
transformation
Bacterial transforming principle - correct answer- R-strain bacteria
must have taken up what he called a "transforming principle" from the
heat-killed S bacteria which allowed them to "transform" into smooth-
coated bacteria and become virulent - *R-strain grew capsule from
transforming factor (DNA) when exposed to head-killed s-cells
Bateson - correct answer- recognized that alkaptonuria must be a
"rare recessive character"
Besides growth, what must happen before a cell divides? - correct
answer- DNA replication.
Central Dogma - correct answer- DNA -(Transcription/nucleus)->
RNA -(Translation/Cytoplasm)-> Protein
Chargaff's Rule - correct answer- A=T and C=G
, Chromosomes - correct answer- long molecules of double-stranded
DNA and protein that contain genes - nucleosome (DNA wrapped around
histone) coiled into chromatin fiber (chromosome)
clades - correct answer- group for evolutionary relationships -
shared characteristics
Conditional Probability - correct answer- an event (A) will occur
when another event (B) is known to occur
want/rest of possibilities (+++)
- your neighbor has 2 children, you know one is a son, what is the
probability the other is a brother?
Congenital generalized hypertrichosis is an X-linked dominant disease. If
an affected male marries an unaffected female, what is the probability of
passing the hypertrichosis gene to his offspring? - correct answer-
p=0.5, all daughters will be affected.
Darwins principles of populations - correct answer- - variation exists
among the population
- variation is passed form one generation to the next
- certain variations may give individuals higher rate of survival
ANSWERS; 100% CORRECT; GRADE A
A molecule of RNA (ribonucleic acid) contains the bases _______. -
correct answer- adenine, guanine, cytosine, and uracil
A nucleotide is made of _______. - correct answer- sugar +
phosphate + nitrogen base
A recessive trait will be observed in individuals that are ________ for
that trait. - correct answer- homozygous
Additive Rule of Probability - correct answer- If two events A and B
are mutually exclusive, the probability that either of them occurs is given
by:
Probability A occurs + Probability B occurs
- a die is tossed what is the probability that the result is even
alleles - correct answer- different versions of a gene
Alternate forms of a gene are called _______. - correct answer-
alleles
,At metaphase I, homologous chromosomes are connected only at what
structures? - correct answer- chiasmata
Avery-MacLeod-McCarty experiment - correct answer- (What is the
transforming factor?) demonstrated that DNA is the genetic material
because degradation of DNA led to a cessation of bacterial
transformation
Bacterial transforming principle - correct answer- R-strain bacteria
must have taken up what he called a "transforming principle" from the
heat-killed S bacteria which allowed them to "transform" into smooth-
coated bacteria and become virulent - *R-strain grew capsule from
transforming factor (DNA) when exposed to head-killed s-cells
Bateson - correct answer- recognized that alkaptonuria must be a
"rare recessive character"
Besides growth, what must happen before a cell divides? - correct
answer- DNA replication.
Central Dogma - correct answer- DNA -(Transcription/nucleus)->
RNA -(Translation/Cytoplasm)-> Protein
Chargaff's Rule - correct answer- A=T and C=G
, Chromosomes - correct answer- long molecules of double-stranded
DNA and protein that contain genes - nucleosome (DNA wrapped around
histone) coiled into chromatin fiber (chromosome)
clades - correct answer- group for evolutionary relationships -
shared characteristics
Conditional Probability - correct answer- an event (A) will occur
when another event (B) is known to occur
want/rest of possibilities (+++)
- your neighbor has 2 children, you know one is a son, what is the
probability the other is a brother?
Congenital generalized hypertrichosis is an X-linked dominant disease. If
an affected male marries an unaffected female, what is the probability of
passing the hypertrichosis gene to his offspring? - correct answer-
p=0.5, all daughters will be affected.
Darwins principles of populations - correct answer- - variation exists
among the population
- variation is passed form one generation to the next
- certain variations may give individuals higher rate of survival
