WorksheetsGenetics and Inheritance
Total questions: 24
Worksheet time: 14mins
Name
Class
Date
1.
These are large molecules that do much of the work in a cell and make up most of the cell's structure.
a)
chromosomes
b)
dna
c)
proteins
d)
alleles
2.
What are small stretches of DNA that code for traits
a)
Nucleus
b)
Chromosomes
c)
Gene
d)
Centromeres
3.
Who was the father of genetics
a)
Sagan
b)
Issac Newton
c)
Gregor Mendel
d)
C.jenkins
4.
One form of a gene is called_______________
a)
a DNA
b)
a Phenotype
c)
a trait
d)
an allele
5.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
6.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
7.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
8.
a change in a gene or chromosome
a)
mutation
b)
fertilization
c)
heterozygous
d)
homozygous
9.
the passing of traits from parents to offspring
a)
heredity
b)
genetics
c)
mutation
d)
hybrid
10.
chart that shows all possible allele combinations for a genetic cross
a)
Punnett Square
b)
trait chart
c)
family tree
d)
pedigree
11.
A number that describes how likely it is that an event will occur
a)
probability
b)
likelihood
c)
fractions
d)
percents
12.
Which type of reproduction results in genetically identical offspring?
a)
asexual reproduction
b)
sexual reproduction
13.
How many chromosomes in a normal human body cell?
a)
46
b)
23
c)
92
d)
2
14.
The sex chromosomes of a male are
a)
XX
b)
XY
c)
YY
d)
VV
15.
The sex chromosomes of a female are
a)
XX
b)
XY
c)
YY
d)
VV
16.
The genotype is the ______________.
a)
physical appearance
b)
Genetic makeup
c)
Alleles gained from one parent
17.
The phenotype is the _______________.
a)
physical appearance of an organism
b)
Genetic makeup
c)
Alleles acquired from a specific parent.
18.
The passing of characters from parents to offspring is called?
a)
Monohybrid cross
b)
Heredity
c)
True breeding
d)
Genetics
19.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
20.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
21.
Each parent contributes one of the genes for a particular trait. The genes of the pair are called:
a)
variables
b)
gametes
c)
hybrids
d)
alleles
22.
The molecule that contains genetic information.
a)
Cell
b)
protein
c)
allele
d)
DNA
23.
a segment of DNA located on the chromosomes
a)
gene
b)
chromosome
c)
protein
d)
DNA
24.
compact strings of DNA
a)
chromosomes
b)
genes
c)
traits
d)
alleles
100 %
