Transcript Heredity Test March 27

Heredity Summative
Test
• 1. Brown, red, blonde color hair is an example
of _______________________
Phenotype
• 2. If you selectively breed two dogs that are
homozygous dominant for a trait, their
Purebred
offspring will be examples of ______________
• 3. Humans producing tomatoes that are large,
flavorful, and durable would be an example of
Selective Breeding
__________________________
4. What is the phenotype for an organism that
has a dominant and recessive allele (Tt)?
Hybrid
_____________
5. A recessive trait is represented by two
Lowercase letters
______________________
6. If you cross-pollinate a tall pea plant with a
short pea plant the offspring would be
_______________________
Heterozygous
7. Which one would be an example of a trait
that a dog would inherit from it’s parent?
Presence of fleas in fur; color of fur; habit of
barking outside
8. Different forms of a trait that a gene may
allele
have are called ____________________
9. Factors that can affect a person’s height is
______________________________________
Genes and Environmental Factors
10.If an individual is heterozygous for a certain trait
they have
One dominant and one recessive allele
_____________________________________
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11. Human sex cells have _____________
individual
chromosomes.
12. When a permanent change happens in a gene or
a chromosome, the result is a
Mutation
_________________________
13.In DNA, cytosine base always pairs with
Guanine
_______________
Hereditary Material is
14.DNA is also called ________________
essential to living organisms because it
Carries the genetic code
___________________________________
15.What type of gene causes traits that are less
A Recessive Gene
likely to occur? _________________________
16.What type of gene causes traits that are more
likely to occur? _______________________
A Dominant Gene
17.When a cell of a plant stem divides, each new
The same number of chromosomes as the parent cell
cell has: _____________________________
18.Complete a punnett square with a cross
between two people with genotypes of Bb
19.An example of Regeneration
A lizard re-growing a lost tail
_______________________________________
20.What is the best explanation of what genes do?
Genes provide the blueprint to produce our traits.
____________________________________
21.Which of these is due entirely to inheritance in
humans?
Broken
Bones;
Reading
Skills;
Endurance;
Eye
Color
________________________________________
22.The chances of developing cancer, diabetes, or
sickle cell anemia are higher if a family member
also has the disorder because they are
Genetically based
____________________________________
23.Mendels early work with pea plants demonstrated
a significant genetic discovery. He discovered that
tallness in pea plants was a trait that was
Dominant
______________________.
24.New yeast grows on a parent yeast organism, and
breaks off when it is ready to form a new separate
organism. What kind of reproduction is this an
Asexual Reproduction
example of? __________________
25.There is a farm of peacocks. Some of the eggs of
peacocks when hatched turned out to be white
peacocks instead of blue. White were worth more
than the blue peacocks. So if you want to raise
more white peacocks you should….
Isolate
the white peacocks and allow only them to breed with each other.
___________________________________________
26. How much genetic material is found in a cloned cell as
compared to the original cell.
_____________________________
Same amount
27. The physical expression of a genetic trait is called
_________________________.
Phenotype
28. The gene for brown hair in human is
Dominant
________________
over red hair.
29. Why might you have brown eyes and I have green/blue
We have different combination of genes for eye color.
eyes? ______________________
30. If both parents have brown eyes but their child has blue
eyes, how can this happen?
Both of the child’s parents carry a gene for blue eyes.
__________________________________________
31. If bushy eyebrows is dominant and two parents with
bushy eyebrows have a baby, what can you predict about
the eyebrows of your baby…
The baby will most likely have bushy eyebrows.
________________________________________________
32.The genetic expression of a genetic trait is
Genotype
called_________________________
Chromosomes
33.Genes are carried on the _________________
34.Offspring of organisms that reproduce sexually
Have ______________________________________
some genetic traits of both parents, but are not exactly like either.
35.The process of an organism passing on its traits
Heredity
to its offspring is called__________________
36.What is the chances of having an offspring with
homozygous recessive trait if the father is
homozygous dominant and the mother is
heterozygous dominant? Complete a punnett
square….__________
0%
37.A tool used to determine the probability that a
trait will be passed on to its offspring is a
Punnett Square
________________________________
38.If you take cuttings from a tree to grow new
trees, what is true about the offspring of trees
produced from this cuttings?
The offspring are clones of the parent tree and should look very similar.
_________________________________________
39. Poodles like all dogs are closely related to
wolves and can breed with them. If this is so what
is the best explanation for why wolves do not look
Poodles have been selectively bred for specific traits.
alike? ____________________________________
40.Single cell organisms can reproduce and create cells
exactly like themselves. What is this called?
Asexual reproduction
_____________________________
41.Complete Punnett Squares for the following:
Black hair- B Orange Hair b parents: Bb and bb
Purple flower-P White flower-p parents: Pp and Pp
(what percentage of offspring will have purple flowers)
T-Tall t-short parents: Tt and Tt
42.Cows have good tasting meat; buffalo can tolerate
hot and cold temperatures. Farmers cross these
two animals and call it a beefalo. What
characteristics would the beefalo have?
Animals
with good tasting meat that can tolerate both hot and cold temperatures.
_____________________________________________
43.DNA (deoxyribonucleic acid) is also called
Hereditary Material
_______________________________
44.If an organism has 14 chromosomes in it’s body
cell, how many will it have in its sex cells?
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____________
45. How does DNA bases match up?
Guanine
Thymine
Adenine to ____________;
Cytosine to _________
46. If an organism has 11 chromosomes in it’s sex
cells, how many chromosomes will it have in each
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body cell? _______________