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by BlastRoom
Practice how human breeding choices change inherited traits in crops and animals.
#us_grade_7_science
20 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
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Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A farmer saves seed only from tomato plants whose fruits arrived without bruises after a 4-day truck trip. What trait is the farmer selecting?
An orchard grower uses pollen and seeds only from apple trees whose fruit had the highest sugar content. What trait is the grower selecting?
A poultry breeder hatches chicks only from hens that laid an egg nearly every day during the spring. What trait is being selected?
Gardeners save seeds from bean plants that stayed healthy during a fungal outbreak while nearby plants died. What trait are they selecting?
A dairy farmer breeds cows from the animals that gave the largest amount at each daily milking. What trait is being selected?
A dog breeder mates dogs that lay quietly when visitors entered the house. What inherited behavior is the breeder selecting?
A rice farmer keeps seed from plants that remained upright after strong winds flattened others. What trait is the farmer selecting?
Farmers breed corn plants with the largest kernels for many generations. What change is most likely in the corn population?
A breeder chooses rabbits with the shortest ears as parents generation after generation. What change is most likely in the rabbits?
Ranchers in a hot region breed cattle that stay healthy at 35°C. After many generations, what change is most likely?
A florist breeds plants whose cut flowers stay fresh longest in vases. After repeated breeding, what trait should become more common?
On a fish farm, breeders use the fastest-growing salmon as parents each year. What result is most likely after many generations?
Gardeners repeatedly plant seeds from carrots with the sweetest roots. What change is most likely in later carrot crops?
Horse breeders mate the fastest sprinters for many generations. What change is most likely in the herd?
People choose the fastest dogs as parents for the next litter. What process is changing the occurrence of traits?
In a drought, wild grass plants with deeper roots survive and produce more seeds without human choice. What process is changing trait frequencies?
A farmer hand-pollinates only pumpkin vines that grew very large pumpkins. What process best describes this breeding choice?
In snowy shrubs, wild rabbits with thicker fur survive winter better and leave more offspring, with no human breeding. What process is described?
In a lab, scientists mate fruit flies with red eyes to produce more red-eyed offspring. What process are the scientists using?
Birds eat more beetles that stand out on tree bark, so camouflaged beetles leave more offspring. No people choose parents. What process is this?
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Same question on every screen. Fastest wins.
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40 questions
