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WorksheetsReproduction of Organisms
Total questions: 18
Worksheet time: 14mins
Bird A has the genotype ll for bill length, and Bird B is LL. The bills of their offspring would be:
long in 100% of the offspring.
short in 100% of the offspring.
long in 50% of the offspring.
short in 75% of the offspring.
A heterozygous orange-flowered plant is crossed with a homozygous purple-flowered plant. If orange is a dominant allele and purple is recessive, what color ratio will the flowers of the offspring plants have?
1 purple: 3 orange
4 purple: 0 orange
2 purple: 2 orange
0 purple: 4 orange
What model can be used to show traits and help determine genotypes of genetically related family members over several generations?
Punnett Square
pedigree
ratio
phenotype
A tree produces seeds in pods when wind-borne pollen from another tree of the same species reaches the flowers. Each seed contains genetic information so that the seed can grow into an adult tree. Which statement best describes the effect of this process?
The tree produces a large number of genetically diverse offspring.
The tree produces a large number of genetically identical offspring.
The tree produces a small number of offspring that are identical to the female parent.
The tree produces a small number of offspring that are identical to the male parent.
Which of the following is NOT a disadvantage of asexual reproduction?
do not need a mate
little genetic variation
mutations can occur
all susceptible to the same disease
Of the following, which is NOT a courtship behavior?
birds singing
fireflies lighting up
frogs croaking
dogs digging
Which of the following is NOT an environmental factor that would affect the hamster's growth?
the amount of food the hamster is given
the gene for fur color
the amount of time spent on the exercise wheel
interactions with other hamsters.
Animal communication includes _____.
courtship behavior
aggression
pheromones
all of the above
Tadpoles survive hatching in water because they are born knowing how to swim. This is an example of _____.
learned behavior
innate behavior
social behavior
none of the above
The mating season for white-tailed deer is just two to three months long. Male deer grow antlers before each breeding season. They use their antlers to fight each other to establish dominance in bachelor herds and earn the right to mate with certain females. Scientists claim that this aggressive behavior increases the chances of successful reproduction for the entire deer population. Which statement best supports this claim?
Healthier male deer are able to grow larger antlers.
Healthier males are better able to protect their young.
This behavior extends the length of the mating season.
This behavior gives healthier males a better chance to mate.
Mr. Blake is preparing to plant his yearly corn crop. In order to produce the best crop yield possible, he considers a variety of factors that can affect the growth of the corn. Which of the following is a factor that can affect the growth of the corn crops?
gene for color of kernals
amount of water given
the space available for the plants to grow
all of the above
What raw materials does a plant need for photosynthesis?
sugar and carbon monoxide
water and carbon dioxide
water and nitrogen
sugar and water
Which is an example of an animal behavior that directly affects plant reproduction?
birds building a nest using twigs
squirrels burying nuts
ducks hiding in predators in marsh grass
horses moving in a herd over prairie grass
Which would provide the most reliable data about the genetic factors that affect plant growth?
two plants of different species grown in the same conditions
three plants of different species, each given a different amount of light
one plant grown in ideal environmental conditions
two plants of the same species grown in the same environmental conditions
Which of the following types of organisms does NOT produce offspring with genetic variation?
humans
dogs
trees
hydra
Parents pass their traits down to their offspring through their __________.
daughter cells
son cells
body cells
reproductive cells
A and B are the same kind of fish. A has a genotype for narrow fins (ww), and B has a genotype for wide fins (W-). Which of the following genotypes of parent fish will produce only offspring having wide fins?
Ww and Ww
WW and ww
Ww and ww
ww and ww
Kari has two pet rats with black fur. When her rats mated, one of their four offspring had white fur, and the other three had black fur. Which is most likely true for Kari’s rats?
Both parents are homozygous for the white-fur trait, which is recessive.
Both parents are heterozygous for the white-fur trait, which is dominant.
Both parents are heterozygous for the white-fur trait, which is recessive.
Both parents are heterozygous for the white-fur trait, which is sex-linked.
