Blood typing is an example of this is where there is one gene but that one gene can have several different characteristics
a
multiple alleles
b
dihybrid trait
c
homozygous dominance
d
incomplete dominance
question 2
a student can study a karyotype to learn about the . .

a
molecular structure of a chromosome.
b
genes that are present in a particular strand of dna
c
medical history of an individual.
d
chromosomes present in a somatic cell.
e
eye and hair color of an organisms
question 3
a pedigree can be used to

a
determinie whether a trait is inherited.
b
show how a trait is passed from one generation to the next.
c
determine whether an allele is dominant or recessive
d
all of the above
question 4
down syndrome occurs as a result of nondisjunction of chromosome 21 during cell division.

a
true
b
false
question 5
variation in human skin color is an example of a(n)

a
intermediate inheritance.
b
codominance.
c
polygenic inheritance.
d
multiple alleles.
how many chromosomes are shown in a normal human karyotype?

a
2
b
23
c
44
d
46
question 8
review the diagram.

select the correct response regarding the relationship between photosynthesis and cellular respiration.

a
the reactants and products of photosynthesis has no relationship with the reactants and products of cellular respiration.
b
the products of cellular respiration are the reactants of photosynthesis.
c
the reactants of photosynthesis are the reactants of cellular respiration.
d
the products of cellular respiration are the products of photosynthesis.
question 9
is the trait in the pedigree below dominant or recessive?

a
dominant
b
recessive
c
not enough information to tell
question 10
in fruit flies, the color of the eyes is sex linked (on the x chromosome). a cross of the flies in the image will produce

a
100% white eyed flies
b
100% of the females with white eyes, 50% of the males with white eyes.
c
100% red eyed flies
d
100% of the females with red eyes, 100% of the males with white eyes.
question 11
study the information on the chart and the graphic. what can you infer about photosynthesis?

a
the closer the light source, the higher the amount of oxygen gas.
b
the closer the light source, the higher the amount of carbon dioxide gas.
c
the closer the light source, the lower the amount of oxygen gas.
d
the closer the light source, the lower the amount of carbon dioxide gas.
question 12
what type of inheritance is shown in the pedigree?

a
sex linked dominant
b
sex linked recessive
c
autosomal dominant
d
autosomal recessive
question 13
this human karyotype is unusual because chromosome set –

a
5 has chromosomes of different shapes
b
10 is missing genetic material
c
14 has enlarged centromeres
d
21 has an extra chromosome
question 14
the main goal of the human genome project was to

a
treat genetic disorders.
b
insert human genes into bacteria.
c
identify the dna sequence of every human gene.
d
to determine the number of chromosomes in humans
question 15
what syndrome does this karyotype show?

a
down syndrome
b
turner's syndrome
c
klinefelters syndrome
d
normal male