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WorksheetsSelective Breeding
Total questions: 40
Worksheet time: 48mins
Selective breeding is...
a process to create an organism with desired traits from parents with those desired traits
natural method of producing offspring with desired traits
creating a new species
making organisms reproduce during times of stress
An example of selective breeding is
a dog breeder mating 2 dogs to make more dogs
a farmer grows bees to pollinate the plants on his farm
a person pollinates 2 white rose plants to only create white roses
One problem with selective breeding is
creating a new species
gene variety is lost
new food sources
Problems with selective breeding include
Better animals
Increased meat production
Animals can have bad health problems
more diversity
Which is NOT a result of selective breeding?
Large seedless watermelons that consumer demand
Bright oranges that are all about the same size
An insect that matches the color of the environment
A dog that has been bred to have short hair
The purpose of selective breeding is to
get bigger animals
get smaller animals
create animals with desirable traits
create animals with bad traits
When selective breeding food crops what might a farmer select for? (Select all that apply.)
The plant the produced the most grain
The plant the produced the largest sized grain
The plant that was the most disease resistant
The plant that was the smallest
The smelliest plant
Which of these is the first step in selective breeding flowers.
Repeat the process only with the offspring with the desired traits
watch the seeds grow
Choose plants that have the desired trait to pollinate
choose which trait is desirable
Which of these is the second step in selective breeding flowers.
Choose which trait is desirable
Watch the seeds grow
Choose plants that have the desired trait to pollinate
Repeat the process only with the offspring with the desired traits.
Which of these is the third step in selective breeding flowers.
Choose which trait is desirable
Watch the seeds grow
Choose plants that have the desired trait to pollinate
Repeat the process only with the offspring with the desired traits.
How can farmers best use selective breeding to increase apple production?
By limiting the number of trees growing so they can have more space.
By choosing trees that are the largest in size.
By increasing the amount of water and fertilizer the trees receive.
By choosing trees that consistently have the most apples.
Problems with animals that are selectively bred include:
Being more disease resistant
Producing more meat
Being more likely to suffer from genetic disease
Being more genetically diverse
Evidence shows that the wolf is the ancestor to all of the breeds of dogs shown below. How did this variation arise in a relatively short period of time?
A. Genetic manipulation
Natural selection
Random chance
Selective breeding
Which of the following best represents inbreeding?
removing DNA from an organism
changing traits based on environment
crossing 2 similar animals
crossing 2 different animals
The purpose of selective breeding is to
get bigger animals
get smaller animals
create animals with desirable traits
create animals with bad traits
What is an example of artificial selection?
Letting dogs choose their own mate
Letting plants pollinate on their own
Crossing a labrador and a poodle to create a labradoodle
1. Artificial selection has been a big factor in the evolution of:
Dogs
Panda bears
Snakes
Jellyfish
All artificial selection or "selective breeding" is good
True
False
What is this an example of?
natural selection
artificial selection
What is a goal of selective breeding?
I. To increase the value of species to humans
II. To produce species that resist disease
III. To produce species with specific traits
I and II
II and III
I and III
I, II, and III
Selective breeding
organisms better adapted to their environment tend to survive and produce more offspring
process used by humans to develop new organisms with desirable characteristics
The differences among a species, like different bird beaks, are called
genes.
variations
traits
alleles
Selective breeding is where _____________ decides which traits should be passed on.
nature
a human
traits
evolution
Which statement best describes selective breeding?
Survival of the fittest.
Evolution.
Breeding for a desired trait.
What does the term Generation mean?
the time between when an organism is born and when they reproduce
a living individual that can carry out life processes.
a total of all biotic (living) and abiotic (non-living) things.
A change in the DNA sequence.
Increasing helpful traits to an organism is one way a breeder may use selective breeding.
True
False
GMO: What does it stand for?
Genes Moved Out
Genetically Modified Organism
Genetically Mutated Organisms
You want to selectively breed for a medium-sized cat that has flat fur. Which two cats would you breed together?
Cats 1 & 2
Cats 2 & 3
Cats 2 & 5
Cats 4 & 5
Cats 1 & 5
When you selectively breed cats 2 & 5, what type of problem might the kittens have?
lung problems
crooked legs
heart problems
kidney problems
You want to selectively breed for a small-sized cat with pointed ears. Which two cats will you breed?
Cats 3 & 4
Cats 2 & 1
Cats 1 & 4
Cats 3 & 1
When you breed cats 1 & 3, what are some possible problems the kittens might have?
lung problems
kidney problems
crooked legs
heart problems
True or False: One problem with selective breeding is that both desired and undesired traits can be passed down.
True
False
Advantage or Disadvantage of GMOs? Crops are resistant to pests, weeds, and fungus.
Advantage
Disadvantage
Advantage or Disadvantage of GMOs? Helps meet global demands for food.
Advantage
Disadvantage
Advantage or Disadvantage of GMOs? Reduces the chances of passing on undesired traits.
Advantage
Disadvantage
