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WorksheetsLife Science
Total questions: 26
Worksheet time: 26mins
Red flowers are (R) dominant. The allele for white flowers are color (r) is recessive.
Red Flower #1 is Rr and that the genotype of Red Flower #2 is RR.
What is the offspring for Box A and Box B?
Box A and Box B are only red flowers
Box A and Box B are only white flowers
Box A has red and white flowers and Box B only has red flowers
Box A has only red flowers and Box B has red flowers and white flowers
The chromosomes of two parents that reproduce sexually are shown.
Given this evidence, determine the chromosomes of the offspring.
Put the four statements that describe cell division in the correct order.
Meiosis, meiosis, mitosis and mitosis
Meiosis, meiosis, both and mitosis
Both, meiosis, mitosis and mitosis
Meiosis, both, mitosis and mitosis
If H represents the dominant allele and h represents the recessive allele, what are the genotypes of the parents shown in the pedigree?
Hh and Hh
hh and hh
HH and HH
Hh and HH
In the Table B, place the correct number of cells that would result from the process of meiosis for a bush with red and white flowers.
In the Table A, place the correct number of cells that would result from the process of mitosis for a bush with red and white flowers.
Some plants can reproduce by sprouting new plants from their roots.
Which statement describes a disadvantage of this type of reproduction?
The new plant lack genetic variety.
Each new plant can reproduce only once
The new plants are poorly adapted to the environment.
Each new plant develops different characteristics quickly
A cell from a turkey’s wing contains 40 chromosomes. How many chromosomes are in the unfertilized egg?
20
40
60
80
Pick the genotype that will go in the blank boxes of the F1 generation that would result in the F2 generation offspring.
Rr and rr
RR and rr
Rr and Rr
rr and rr
Which phenotype is dominant?
Purple
Black
Fur
Brown
What is the male genotypes and female genotypes for the offspring?
Male genotypes = BB, Female genotypes = Bb
Male genotypes = bb, Female genotypes = BB
Male genotypes = bb, Female genotypes = Bb
Male genotypes = Bb, Female genotypes = bb
Aphids are small insects that feed on plants and can reproduce sexually and asexually.
Which statement describes an advantage of asexual reproduction of aphids?
Offspring are more rapidly produced.
Diversity is increased in the population
Offspring are genetically different from the parent.
Genetic information is passed from both parents offspring.
A scientist finds a snail fossil in a layer of rock in a desert.
Which action would help the scientist determine what
the environmental conditions may have been when the snail existed?
Looking for more fossils in different layers of rock
Counting the number of similar snail fossils found in the same layer of rock
Analyzing the characteristics of other plant and animal fossils found in the same layer of rock.
Recording information about plants and animals living in the desert today, near where the fossil was found
Which statement is a reasonable explanation for the difference in the appearances of the two Oldfield mouse populations?
Beach mice with dark coats were more easily spotted by predators.
The dark coats of beach mice became lighter with exposure to sunlight.
Beach mice with light coats were more likely to remain in underground burrows.
The dark coats of beach mice were more common because the coat color is a dominant trait.
A scientist studies a newly discovered plant.
Which question should the scientist ask to find out whether the plant reproduces sexually or asexually?
How long does the plant live?
How many cells does the plant have?
How many offspring does the plant produce over its lifespan?
How does genetic makeup of the plant compare to its offspring?
The table shows the relative size and genetic diversity of four populations of the same species.
Which population is most likely to recover from a drastic environmental change?
Population W
Population Y
Population Z
Population X
Select the two statements that support the population survival.
Greater variations in traits increase the chance that a population will be able to adapt.
A population with many individuals can adapt more easily to changes in the environment
Similar genetics lowers the likelihood of extinction after a sudden environmental change
Few individuals in a population can avoid the effects of environmental changes better than large populations
Which statement gives an example of asexual production?
A new potato plant that grows from a potato
Two worms mate and produce more worms
An apple seed is produced from pollinated flowers
Butterflies have genetic information from both parents.
Four different mammal populations contain varying numbers of individuals with a range of fur thickness.
Which graph shows a population that would have the greatest chance of surviving climate change?
Population 1
Population 2
Population 3
Population 4
Homozygous, Purebred or Dominant
Bb
BB
Heterozygous or Hybrid
BB
Bb
Recessive
BB
bb
Bb
Carrier of a Trait
Bb
BB
bb
If you are recessive you will be?
shaded
half shaded
not shahed
Alleles or genotypes are:
BB and Bb
The physical appearance
The Phenotype is:
Bb and bb
The physical appearance
