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WorksheetsHeredity
Total questions: 24
Worksheet time: 12mins
Name
Class
Date
1.
The traits of an organism are passed to its offspring on small coded strands of DNA material called
a)
meiosis
b)
recessive traits
c)
genes
d)
heredity
2.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
3.
B = brown fur b = white fur
In the punnett square, what is the probability for white fur?
In the punnett square, what is the probability for white fur?
a)
0%
b)
25%
c)
50%
d)
75%
4.
Which sentence is FALSE?
a)
All organisms have 23 pairs of DNA.
b)
Chromosomes are made of genes.
c)
DNA is made out of 4 chemicals: adenine, cytosine, thymine, guanine
d)
DNA is the recipe for life.
5.
An organism's physical appearance or visible traits...
a)
genotype
b)
inherit
c)
gene
d)
phenotype
6.
True or False? A tightly wound bundle of DNA is a chromosome.
a)
False
b)
True
7.
True or False? The passing of traits from one parent to offspring is heredity.
a)
False
b)
True
8.
What is this image showing?
a)
DNA
b)
Chromosome
c)
Alleles
d)
Phenotype
9.
Genes are made of a pair of ____
a)
DNA
b)
Chromosome
c)
Alleles
d)
Phenotype
10.
Long strands of DNA are called
a)
DNA
b)
Chromosome
c)
Alleles
d)
Phenotype
11.
______ is the physical expression of genes
a)
DNA
b)
Chromosome
c)
Alleles
d)
Phenotype
12.
______ is the set of genes possessed by someone
a)
DNA
b)
Chromosome
c)
Genotype
d)
Phenotype
13.
B=Blonde Hair b=Brown Hair
If a person was BB they would have
If a person was BB they would have
a)
Blonde Hair
b)
Brown Hair
14.
B=Blonde Hair b=Brown Hair
If a person was Bb they would have
If a person was Bb they would have
a)
Blonde Hair
b)
Brown Hair
15.
When comparing the offspring of sexually and asexually reproducing organisms, we would expect the genetic material (DNA) of the sexually reproducing organism to -
a)
contain fewer mutations
b)
be lesser in quantity
c)
be simpler overall
d)
show more variation
16.
B=Blonde Hair b=Brown Hair
If a person was bb they would have
If a person was bb they would have
a)
Blonde Hair
b)
Brown Hair
17.
This form of asexual reproduction results in the equal division of the parent cell.
a)
Regeneration
b)
Budding
c)
Binary Fission
d)
Sporulation
18.
A form of asexual reproduction which may include runners, tubers and bulbs is:
a)
Vegetative Propogation
b)
Binary Fission
c)
Budding
d)
Sporulation
19.
A hydra reproduces when an outgrowth, or bud, forms and continues to develop until if falls off of the parent. This is an example of:
a)
Binary Fission
b)
Sporulation
c)
Budding
d)
Vegetative Propagation
20.
What process is shown in the diagram?
a)
sexual reproduction
b)
asexual reproduction
c)
digestion
d)
excretion
21.
Offspring are genetically identical to the one parent.
Is this the result of sexual or asexual reproduction?
And how would you characterize the offspring listed above?
Is this the result of sexual or asexual reproduction?
And how would you characterize the offspring listed above?
a)
Asexual reproduction with uniform offspring
b)
Sexual reproduction with diverse offspring
c)
Asexual reproduction with diverse offspring
d)
Sexual reproduction with uniform offspring
22.
How are genetic traits passed down from generation to generation?
a)
Chromosomes
b)
Reproduction
c)
DNA
d)
Genes
23.
How many generations are shown in this pedigree?
a)
3
b)
6
c)
5
d)
4
24.
The pedigree shows the inheritance of an autosomal dominant trait. What is the genotype for individual 2 in the second generation?
a)
homozygous dominant (DD)
b)
homozygous recessive (dd)
c)
heterozygous (Dd)
d)
not enough information to determine
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