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WorksheetsGenetic Variation and the Environment
Total questions: 15
Worksheet time: 5mins
The variety of genes and alleles that exist in organisms is called:
independent assortment
genetic diversity
mutations
meiosis
Traits that help an organism survive are called:
adaptations
natural selection
genetic variation
evolution
The passing on of physical characteristics from parent to offspring is called ________.
fertilisation
mutation
mitosis
heredity
Which of the following is not a source of genetic variation?
genetic shuffling
mutation
sexual reproduction
asexual reproduction
Heterozygous means:
the alleles are the same
the alleles are absent
the alleles are different
the alleles are dominant
Which of the following is homozygous recessive?
AA
Aa
aA
aa
Which of the following statements are true for genetic variation?
It is more energy efficient for the species to reproduce this way
It may help a species survive when the environment changes
It can only be caused by genetic mutations
Genetic variations will always show up as different traits
A mode of reproduction in which an organism arises from two organisms and inherits half of its DNA from each parent is called:
Cloning
Asexual reproduction
Sexual reproduction
Artificial selection
Genetic variation can result in different traits in the species. Traits that help an organism survive are called:
habitats
dominant traits
recessive traits
adaptations
What is NOT considered a change in environment?
A new disease
A new predator
Change in climate
New US president
Which of the following is an adaptation the is most likely caused by genetic variation:
Opposable thumbs that humans have
Vaccination to prevent diseases
Clothing to protect us from the elements
A genetic disorder like Down syndrome
Which of the following is not considered genetically related?
Your gender
Your sex
Your ability to digest certain food
How many fingers you have
Which of the following variations will NOT help a cat survive?
Having 9 lives
A darker fur coat
More padded feet
Sharpness canines and claws
Which of the following is an advantage of asexual reproduction?
It guarantees the survival of the offsprings
It creates a lot of genetic diversity
It is more energy efficient to do
It is the main mode of reproduction for humans
Which of the following is an adaption to a changing environment:
Antibiotic resistance of bacteria
Wolves hunting in packs
Human adults can break down lactose
All of the above
None of the above
