Genetics Test Review
1. List types of asexual reproduction: budding, binary fission,
mitotic cell division, animal regeneration, vegetative
reproduction, & cloning
2. A disadvantage of an organism going through asexual
reproduction is that the organism will have little to no genetic
variation
3. Chromosomes located in the nucleus in a eukaryotic organism.
4. Know the genetic order from smallest to largest: Genes, DNA,
Chromosomes and Cell Nucleus
Chromosomes Cell Nucleus Genes DNA
5. If most people can taste the chemical PTC, then this inherited
trait is dominant.
6. Sexual Reproduction involves two parents, genetic variation,
and the offspring is not identical to the parent.
7. Offspring receive 2 genes for each trait.
8. Law of Dominance is when two different forms of a trait can
coexist in one individual and the dominant one will mask the
recessive one. (hint*Mendel’s principle)
9. Language and accent (is/is not) an example of an inherited
trait in humans.
10. Flowers and animals with sperm and eggs are examples of
organisms that go through sexual reproduction.
11. Use the following information to set up a Punnett square.
Parent 1: heterozygous green seeds
G
g
Parent 2: homozygous yellow seeds g G g
gg
g
Gg
gg
12. Know how to write genotypes for homozygous dominant,
homozygous recessive and heterozygous organisms.
1a. External shell present ………………………..…Go to 2
1b. External shell not present……………….....…Go to 3
2a. Shell consists of two halves…………………...Class Bivalvia
2b. Single shell…………………………….………………Class Gatropoda
3a. Distinct head and tentacles present ……….Go to 4
3b. Distinct head and tentacles not present …Phylum Annelida
4a. Rounded head ……………………………………….Order Octopoda
4b. Torpedo-shaped head …………………………...Order Teuthida
13. Use the Dichotomous key above to identify the group to which
the following organisms belong:
Gastropoda
Octopoda
Annelida
14. Asexual vs Sexual
16. Adaptation of a species allows them to survive and reproduce.
What is this called? Natural Selection
17. Describe the differences in the beaks finches in the picture
below:
Asexual
Sexual
Asexual
The beaks are different sizes and shapes to allow for the
difference in diet
Sexual
15. Define Heredity and Justify using at least 2 examples. Heredity
is the passing of traits from parent to offspring. In asexual
reproduction, the offspring are a clone of the parent and are
genetically the same. Binary fission is an example of asexual
reproduction, the organism splits in two to form 2 exact copies.
In sexual reproduction, the offspring will receive one gene from
each parent and will be genetically different from each parent.
Only the dominant alleles will be displayed. For example,
dominant eye color from one parent will show up in the
offspring.
18. Using the Dichotomous Key above, identify plant III = Carya
23. Explain why insects’
mouthparts are
different.
19. Draw and label a picture to
correctly show a plant’s
response to light on the
right side.
What is this called
phototropism
20. Draw and label a picture to
correctly show a plant’s
response to gravity on the
right side.
The mouthparts have
modifications that are adapted
to the insects diet or feeding
method.
The plant is growing toward the light
source
the
plant is
growing
up
against
gravity
What is this called
geotropism
21. How does camouflage help an organism survive? Camouflage helps
the organism hide from predators or allows the organism to hide
from the prey they are stalking.
22. Describe selective breeding: the process of humans controlling the
breeding of plants or animals to select for specific traits.
24. Describe why this sandbur seed looks like this. The seed has spines
to allow it to get caught in animal fur and be
dispersed away from the parent plant.