NEW
Font size
S
M
L
XL
WorksheetsBiology Ch 12
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Meiosis produces cells with how many chromosomes?
a)
23
b)
44
c)
22
d)
46
2.
Which event takes place during anaphase II of meiosis II?
a)
nuclear membrane breaks down
b)
spindle fibers disassemble
c)
cytoplasm divides
d)
sister chromatids separate
3.
A plant that is homozygous for red flowers is crossed with a plant that is homozygous for white flowers. In the case of incomplete dominance, the flowers of the offspring will be
a)
red and white.
b)
white only.
c)
pink only.
d)
red only.
4.
In the case of codominant alleles, a plant that is homozygous for red flowers that is crossed with a plant that is homozygous for white flowers will produce flowers that are
a)
red and white spotted.
b)
completely white.
c)
dark pink all over.
d)
pink and red.
5.
Eye color, hair color, and skin color are polygenic traits. Polygenic traits result from
a)
recessive genes.
b)
many genes.
c)
codominant genes.
d)
epistatic genes.
6.
In Mendel's monohybrid cross of a purebred white-flowered plant and a purebred purple-flowered plant, the F generation...
a)
showed only the dominant trait
b)
showed only the recessive trait
c)
did not receive any recessive alleles
d)
remained purebred
7.
Which of the following phrases best describes the function of meiosis?
a)
reduces chromosome number by half, produces gametes
b)
reduces chromosome number by half, produces diploid cells
c)
conserves chromosome number, produces haploid cells
d)
conserves chromosome number, produces genetically identical cells
8.
In a genotype for plant height, such as Tt, what does each letter represent?
a)
one genome
b)
one gene
c)
one allele
d)
one gamete
9.
If females are XX, Males are _____
a)
YY
b)
XX
c)
XY
10.
In humans, gamete cells contain __________ number of chromosomes.
a)
N=23
b)
diploid
c)
haploid
d)
gene
e)
allele
Reset
