WorksheetsMeiosis and Genetics (all)
Total questions: 50
Worksheet time: 58mins
Name
Class
Date
1.
the combination of genes for one or more specific traits (the actual genetic makeup)
a)
genotype
b)
phenotype
c)
Punnett square
d)
pedigree
2.
an organism’s appearance or other detectable characteristics
a)
phenotype
b)
genotype
c)
pedigree
d)
Punnett square
3.
has either two dominant or two recessive alleles (genes) [sometimes called “pure” cross]
a)
homozygous
b)
heterozygous
c)
phenotype
d)
genotype
4.
has one dominant allele and one recessive allele [sometimes called “hybrid” cross]
a)
heterozygous
b)
homozygous
c)
phenotype
d)
genotype
5.
a process in cell division during which the number of chromosomes decrease to half the original number by two divisions of the nucleus, which results in the reproduction of sex cells (gametes or spores)
a)
meiosis
b)
mitosis
c)
asexual reproduction
d)
homologous chromosomes
6.
in eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes
a)
mitosis
b)
meiosis
c)
sexual reproduction
d)
homologous chromosome
7.
Incomplete dominance means that the traits are
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
8.
Term for homozygous organisms that display two dominant phenotypes at the same time
a)
codominance
b)
incomplete dominance
c)
multiple alleles
d)
linked genes
9.
What is a phenotype?
a)
The expression of a trait; what you see.
b)
refers to the genetic makeup of an individual
c)
An organism that has the same genes for a trait (ex. TT or tt)
d)
the passing of traits from parent to offspring
10.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
11.
Where, in the eukaryotic cell, is DNA located?
a)
ribosomes
b)
nucleus
c)
E.R.
d)
cytoplasm
12.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
13.
A human usually has _____ total chromosomes.
a)
6
b)
22
c)
4
d)
46
14.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
15.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
16.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
17.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
18.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
19.
A dominant allele is represented by
a)
a lower case letter.
b)
a capital letter.
c)
an X.
d)
a Y.
20.
Genotype or Phenotype: Freckles
a)
Genotype
b)
Phenotype
21.
Genotype or Phenotype: Black hair
a)
Phenotype
b)
Genotype
22.
Genotype or Phenotype: ff
a)
Genotype
b)
Phenotype
23.
Homozygous or Heterozygous: ff
a)
Homozygous
b)
Heterozygous
24.
Homozygous or Heterozygous: Ff
a)
Homozygous
b)
Heterozygous
25.
What law states that in Tt the person will only show the dominant allele
a)
law of segregation
b)
law of independent assortment
c)
law of dominance
d)
law of punnett squares
26.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
27.
The different forms of genes are known as
a)
environment
b)
probability
c)
traits
d)
alleles
28.
In animals, shaggy fur is dominant to short fur. According to the genotypes shown, what percent of offspring will have short fur?
a)
0
b)
25
c)
50
d)
75
e)
100
29.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
30.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
31.
Crossing over helps promote
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
32.
Females have ____ and males have _____ chromosomes.
a)
XX, XY
b)
XY, XX
c)
XX, XX
d)
XY, XY
33.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
34.
Cells that have only one chromosome from each pair
a)
meiosis
b)
haploid
c)
homologous
d)
diploid
35.
How many daughter cells are produced from meiosis ?
a)
10
b)
6
c)
4
d)
2
36.
Mitosis produces how many daughter cells ?
a)
6
b)
4
c)
8
d)
2
37.
Which of the following cells is a gamete?
a)
egg
b)
bone
c)
heart
d)
muscle
38.
The correct order of the phases of mitosis and meiosis could be abbreviated as:
a)
MAPT
b)
PAMT
c)
TPAM
d)
PMAT
39.
What is this?
a)
Pedigree
b)
Karyotype
c)
Venn diagram
d)
Punnett Square
40.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
41.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
42.
What is the genotype of the father?
a)
AA
b)
aa
c)
Aa
d)
AA or aa
43.
This is an example of ___________.
a)
Incomplete Dominance
b)
Codominance
c)
Multiple Alleles
d)
Polygenic Inheritance
44.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
45.
Neither allele is dominant. Heterozygote has a blended phenotype.
a)
incomplete dominance
b)
codominance
c)
multiple alleles
d)
sex linked
46.
incomplete dominance means that there traits are,,,
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
47.
polygenic means that _________ control a characteristic
a)
many genes
b)
single genes
c)
3 genes
d)
no genes
48.
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:
a)
all black
b)
all white
c)
all gray
d)
speckled black and white
49.
Which of Mendel's laws states that alleles are separated during meiosis?
a)
Law of Dominance
b)
Law of Segregation
c)
Law of Independent Assortment
50.
If a dominant allele is present, the trait will always appear in the organism.
a)
Law of Segregation
b)
Law of Dominance
c)
Law of Independent Assortment
100 %
