WorksheetsGentics
Total questions: 18
Worksheet time: 32mins
In animals, which structure passes the mother’s DNA to offspring?
sperm
seeds
pollen
eggs
If the weather patterns change and stay colder, what is one way a mammal MOST likely will adapt to this change?
eat less
hibernate
grow a thicker coat of fur
increase its body temperature
Which is the greatest benefit of sexual reproduction?
capable of reproducing by meiosis
ability to reproduce without a mate
ability to produce genetically different offspring
capable of producing offspring genetically identical to parent
Above are some influences on a person’s quality of life.
Which is LEAST controlled by human behavior?
1
2
3
4
This diagram illustrates a type of reproductive process in an organism.
Based on this information, what conclusion about the offspring labeled “A” is supported?
It has acquired traits in response to its environment.
It has a lower mass of genetic material than offspring B.
It has the same genetic material as its parent.
It has half as much genetic material as its parent.
In a gerbil population, the gene for coarse hair (H) is dominant, while the gene for smooth hair (h) is recessive. One pet store found that most of their customers want coarse-haired gerbils. Which cross between male and female gerbils will produce the greatest number of coarse-haired offspring?
Results from a simple heredity investigation can be displayed as a Punnett square, as a ratio, or as a fraction.
All three methods can be used because
three results are possible from a simple hereditary investigation
three generations of offspring can be produced in a simple hereditary investigation.
all three methods can be used to show a different variation in the results.
all three methods can be used to show the same information.
Which of the following describes asexual reproduction?
the process of meiosis in a fruit fly
fertilization of a chicken egg
binary fission in an amoeba
the process of embryo development in a mouse
Allele A is dominant in mice and allele a is recessive. Two mice with the gene combination Aa breed and produce four offspring as shown below.Which offspring has the recessive phenotype?
1
2
3
4
Potatoes reproduce by growing sprouts on their surfaces as shown.When planted, these sprouts grow into new plants. This is an example of...
seed production.
fertilization.
pollination.
asexual reproduction.
A diagram of a homologous pair of rabbit chromosomes is shown. Homologous pairs of chromosomes code for the same traits and look alike. In which cell is there is an absence of homologous chromosomes?
bone
gamete
liver
skin
Which plant cells contain half the DNA from one parent plant?
xylem and phloem
pollen and ovule
epidermis and mesophyll
pith and cambium
Many invertebrate animals, such as the hydra, reproduce asexually.
What form of reproduction in this stage of the life cycle of the hydra is shown in the diagram?
fission
budding
fragmentation
meiosis
A human body cell has 46 chromosomes. Which diagram represents mitosis in a human body cell?
A bacterium can reproduce quickly by splitting into two cells. Which of these BEST describes the genetic make-up of the resulting two cells?
They have the same amount of genetic material and are identical.
They have the same amount of genetic material but are not identical.
They have half the amount of genetic material, which grows in size.
They have half the amount of genetic material, but then it duplicates itself.
Which of the following is a part of the process of sexual reproduction?
budding
regeneration
pollination
fragmentation
Organisms that reproduce asexually generally have offspring that are
unicellular.
multicellular.
genetically varied.
genetically identical.
What can cause an offspring to have a physical trait neither of its parents has?
a mutation in a parent’s body cell
a mutation in a parent’s sex cell
the natural selection of a trait
the artificial selection of a trait
