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WorksheetsNSCAS-Heredity Review
Total questions: 45
Worksheet time: 33mins
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
In science, mutations are
The reason the X-Men exist
Genetically engineered creatures that you fight in the Hunger Games
A change in the DNA of an organism that produces new traits
Always helpful for survival
True or false: Mutations only harm chances of survival:
True
False
Traits that are passed from parents to offspring are always
Recessive
Inherited
Dominant
Heterozygous
The genetic difference between individuals in the same species is
Interesting
Harmful
Variation
Genetics
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
A dominant allele is represented with a
capital letter
lowercase letter
If an individual's genotype for eye color is (Bb) what color will their eyes look if (B) is dominant and represents brown eyes and (b) is recessive and represents blue eyes?
brown eyes
blue eyes
Which trait will show if an individual has 1 dominant and 1 recessive allele for a trait?
the dominant trait
the recessive trait
In the punnett square below, what belongs in the missing square
In the punnett square, what is the probability for white fur?
Which of the following genotypes is homozygous dominant?
Yy
yY
yy
YY
How many chromosomes do humans have?
46
23
96
21
43
What happens when the amino acid sequence coded by a gene is altered?
A defective protein is produced, causing a mutation.
The amino acid sequence is corrected by the lysosomes.
Nothing changes; the correct proteins are still made.
This situation has never occurred.
What kind of mutations exist in humans?
Neutral mutations
Harmful mutations
Beneficial mutations
All of these
What is an example of a beneficial mutation?
Hemophilia
Cancer
Lactose tolerance
None of the above
Beneficial
Biomolecules made of amino acids that perform biological functions
The basic physical and functional unit of heredity made up of DNA
Producing or promoting a favorable result; advantageous
A change of the nucleotide sequence of the genome
What characteristic does "survival of the fittest" need for survival of a species.
Genetic Variation
Speed
Beak shape
Biodiversity
The variety of genes and alleles that exist in organisms
independent assortment
chromosomal abnormalities
genetic diversity
mutations
__________________ is when human breed plants or animals to get specific traits. ex. Dogs
artificial selection
natural selection
biological selection
The probability of an organism surviving and reproducing
Variation
Species
Fitness
Gene
Taking a gene from one species and putting it in another
Environmental Variation
Genetic Variation
Adaptive Feature
Genetic Engineering
Genes are made up of ________.
RNA
Denim
Translation
DNA
Genes control the production of _________ which determine the traits of an organism.
proteins
eggs
lipids
carbohydrates
