WorksheetsHeredity and Genetics
Total questions: 32
Worksheet time: 25mins
Every living thing has genetic information stored in the form of
Ribosomes
DNA
Chloroplast
Mitochondria
If two alleles are the same for a certain trait they are considered
Homozygous
Twins
Heterozygous
Common
Physical traits that are expressed are known as ____________
Mutation
Personality
Genotype
Phenotype
Sections of DNA that have instructions for a specific trait are called _______________
Blueprints
Genes
Heterozygous
Fragments
Chromosomes are
Found in the mitochondria
Made of 20 pairs
Long strands of DNA that contain many genes
Bundles of DNA that contain only one gene each
The passage of genetic instructions from one generation to the next is known as
Alleles
Ancestry
Heredity
Variation
The genes of an organism that are written with capital or lowercase letters
Pant size
Deoxyribonucleic acid
Genotype
Gretchentype
If a gene is always expressed or always shown with a capital letter it is
Bossy
Recessive
Yelling
Dominant
If a certain trait has two different alleles (one dominant and one recessive) it is called __________________
Homozygous
Confused
Differentiated
Heterozygous
This variation of a gene can only be expressed if it is received from both parents
Shy
Heterozygous
Variation
Recessive
Different versions of the same gene are called
Jeans
Editions
Varieties
Alleles
Two parents have type O blood. What will the blood type of their children be?
O
They can have all four types of blood
Either A or O
AB
Which of the following is an example of incomplete dominance?
A red cow and a white bull have a red and white spotted calf.
Human ABO blood types
A red flowering plant and a white flowering plant have pink flowered offspring.
A tall plant and a short plant have tall offspring.
In peas, yellow pod color is dominant to green pod color. Two heterozygous parents are crossed. What are the chances that the offspring will have green pods?
25%
50%
75%
100%
In peas, yellow pod color is dominant to green pod color. Two homozygous dominant parents are crossed. What are the chances that the offspring will have green pods?
0%
25%
50%
75%
In peas, yellow pod color is dominant to green pod color. A heterozygous parent is crossed with a homozygous recessive plant. What are the chances that the offspring will have green pods?
25%
50%
75%
100%
A woman has type AB blood and her husband has type O blood. The doctor tells them their child has type O blood. She thinks this is very strange. Why?
She can't be the mother of a type O child.
Her husband can't be the father of a type O child.
Type O blood is very rare.
There's nothing strange about it.
If a man is color blind, can he pass the trait on to his sons?
Yes
No
Only if his mother was color blind.
Only if his father was color blind.
Male patterned baldness is a recessive sex linked trait. How can a woman have it?
A woman can have it if she has two alleles for it.
A woman can have it if her father had it.
A woman can have it if she has one allele for it.
A woman can't have male patterned baldness.
A white flowered plant is crossed with a red flowered plant. The two traits have codominance. What color are the offspring?
Red
White
Red and white spotted
Pink
b= blue eyes
What is true about two brothers that have brown eyes?
One has genotype BB the other Bb.
A nucleotide consists of
DNA
adenine and thymine
A phosphate, sugar and nitrogenous base
genes
In a DNA molecule, nucleotides are linked together to make up a single strand of DNA then bonded to a second strand. This structure is known as a
RNA
double helix
watson-crick
double nucleotide
