WorksheetsB5 Inheritance STC Triple
Total questions: 39
Worksheet time: 37mins
Name
Class
Date
1.
The passing of traits from one generation to another.
a)
Cell Division
b)
Dominance
c)
Heredity
d)
Recessiveness
2.
A structure found in the nucleus of a cell that contains the genetic information (DNA).
a)
Chloroplast
b)
Chromosome
c)
Gene
d)
Trait
3.
A segment of DNA found on a chromosome that determines the inheritance of a particular trait.
a)
Cell
b)
Gene
c)
Phenotype
d)
Trait
4.
Genes for a specific trait are generally inherited this many at a time.
a)
0
b)
1
c)
2
d)
3
5.
One gene from an inherited pair is called this.
a)
an allele
b)
a cell
c)
a chromosome
d)
a trait
6.
The set of genes carried by an organism is called this.
a)
dominant
b)
genotype
c)
phenotype
d)
recessive
7.
The physical expression of the genes is called this.
a)
allele
b)
chromosome
c)
gene
d)
phenotype
8.
All of the following are examples of inherited traits except
a)
eye color.
b)
eye shape.
c)
hair length.
d)
hair type.
9.
A trait that will always be expressed in the phenotype if it is in the genotype.
a)
acquired
b)
dominant
c)
hybrid
d)
recessive
10.
Alleles for this type of trait are represented by capital letters.
a)
acquired
b)
dominant
c)
hybrid
d)
recessive
11.
A trait that will be expressed in the phenotype only if both alleles are the same.
a)
acquired
b)
dominant
c)
hybrid
d)
recessive
12.
If both a dominant and a recessive allele are in the genotype, which trait will be expressed?
a)
acquired
b)
dominant
c)
hybrid
d)
recessive
13.
Alleles for these traits are represented by lowercase letters.
a)
acquired
b)
dominant
c)
hybrid
d)
recessive
14.
In chickens, the allele for feathers on the legs (F) is dominant to the allele for no feathers (f). Which choice is a genotype for these chickens?
a)
F
b)
f
c)
Ff
d)
ff
15.
In cats, the allele for being non-tabby (t) is recessive to the allele for tabby (T). Which choice is a phenotype for a cat with two recessive alleles?
a)
tt
b)
TT
c)
tabby
d)
non-tabby
16.
In cows, the allele for a white face (W) is dominant to the allele for a solid color all over (w). Which choice is a phenotype for a cow that has a recessive genotype?
a)
w
b)
ww
c)
white face
d)
solid color
17.
In dogs, the allele for long legs (s) is recessive to the allele for short legs (S). Which choice is a genotype for a dog with one recessive allele and one dominant allele?
a)
SS
b)
Ss
c)
short legs
d)
long legs
18.
What does heterozygous mean?
a)
when two genes are different
b)
when two gene ares the same
c)
when two people are the same
d)
when two people are different
19.
Why is meiosis important?
a)
it is used for growth and repair
b)
it makes lots of genetically identical cells
c)
it creates variation
d)
so that we can create lots of different proteins
20.
What are alleles?
a)
different genes
b)
different forms of the same genes
c)
different proteins
d)
different cells
21.
What is the genotype for a biological male person?
a)
XX
b)
XY
22.
How many chromosomes are there in most of your body's cells?
a)
23
b)
46
c)
12
d)
48
23.
How many chromosomes are in sex cells of humans?
a)
12
b)
46
c)
23
d)
18
24.
Brown fur color is dominant over black fur color. Which of the following is the actual genotype of ALL of the offspring in the next generation of this cross for fur color?
AA x aa
AA x aa
a)
AA
b)
Aa
c)
aa
d)
brown fur
25.
What does this image show?
a)
Punnett Square
b)
Phenotype
c)
Genotype
d)
Dominant allele
26.
If you cross two heterozygous traits (Rr x Rr), as Mendel did in his second experiment, what ratio will you get between offspring with the dominant and recessive phenotypes?
a)
1:1
b)
2:1
c)
3:1
d)
4:1
27.
Who was Gregor Mendel?
a)
A French Botanist
b)
A German Physician
c)
An American Cowboy
d)
An Austrian Monk
28.
Two yellow jaguars have cubs. Most of the cubs are yellow but a few are black. Which of the following is true?
a)
Black is a dominant fur color
b)
Both parents are heterozygous
c)
Fur color is not genetic
d)
The black cubs were adopted
29.
where do we get our genes from?
a)
from our mum
b)
from our dad
c)
some from both
d)
half from each parent
30.
What is a cell without a nucleus called?
a)
Prokaryote
b)
Eukaryote
c)
Heterotroph
d)
Dead
31.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
32.
Which of the following best explains why dominant alleles that cause lethal disorders are less common than recessive alleles that cause lethal disorder.
a)
Lethal disorders caused by dominant alleles are usually more severe than lethal disorders caused by recessive alleles.
b)
Unlike lethal disorders caused by recessive alleles, lethal disorders caused by dominant alleles usually cause death of the embryo.
c)
Most individuals carrying a lethal dominant allele have the disorder and die before they reproduce.
d)
The presence of a dominant lethal allele causes sterility.
33.
In Mendel's first experiment, he crossed two a purple flower with a white flower. What were the F1 generation phenotypes?
a)
100% purple
b)
100% white
c)
75% purple, 25% white
d)
75% white, 25% purple
34.
In Mendel's second experiment, he crossed two purple flowers from the F1 generation. What were the resulting phenotypes?
a)
100% purple
b)
100% white
c)
75% purple, 25% white
d)
75% white, 25% purple
35.
Which of the following happens when a cell divides in mitosis?
a)
Each daughter cell receives its own copy of the parent cell’s DNA
b)
The cell’s volume increases
c)
It becomes more difficult for the cell to get enough oxygen and nutrients
d)
The cell has DNA overload
36.
Which of these is produced by meiosis?
a)
four gametes with half the number of parent's chromosomes
b)
body cells e.g muscle, blood, bone, skin
c)
four daughter cells identical to parent cells
d)
four daughter cells identical to each other
37.
How do replication errors and environmental mutagens impact genetic variation in offspring?
a)
genetic variation is unchanged
b)
genetic variation increases and decreases
c)
genetic variation increases
d)
genetic variation decreases
38.
Polydactyly is a common mutation that gives 6 digits. It cannot be carried by someone. This tells us that the muted gene must be
a)
Dominant
b)
Recessive
39.
Cystic Fibrosis is a recessive mutation where the cell membrane produces too much.....
a)
Water
b)
Sugar
c)
Mucus
100 %
