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- 1. Multiple ChoiceSuppose that in sheep, a dominant allele (B) produce black hair and a recessive allele (b) produce white hair. If you saw a black sheep, you would be able to identifyits phenotype for hair colorits genotype for hair colorthe genotype of only one of its parentsthe phenotype of both of its parents
- 2. Multiple ChoiceOne of the main reasons genes assort independent of one another is thatthey produce unrelated traitsthey produce related traitsthey are on the same chromosomethey are on different chromosomes.
- 3. Multiple ChoiceA single gene has 3 or more alternative forms. These are calledheterozygotesmultiple allelesepistaticpolygenic
- 4. Multiple ChoiceA child has type O blood, if mother has type A blood, what would the fathers blood type beA,B, or OAB or AAB or BO only
- 5. Multiple ChoiceIn mice, the homozygous mice are black and white. The heterozygous mice are gray. What pattern of inheritance is expressed in fur color in mice?complete dominance and recessivenessco-dominanceincomplete dominancepleiotropy
- 6. Multiple Choice
If the parents of a cross are AaBbCc x aaBBcc. What is the probability of an offspring that is homozygous recessive for all 3 traits?
1/64
1/32
1/8
O
- 7. Multiple ChoiceIn humans, if a non-disjunction event leads to an individual that is XXY, they wouldbe female because they have 2 X chromosomesbe male because they have a Y chromosomenot survivehave both male and female characteristics
- 8. Multiple ChoiceIf a female was a carrier for sex-linked color blindness, what percentage of her male children would also be color blind?0%25%50%100%
- 9. Multiple ChoiceChromosomes that do NOT play a role in determining the sex of an individual are calledsex chromosoemsX and YautosomesA and B are correct
- 10. Multiple ChoiceIn a sex-linked inheritance pedigree you would expect to seemore affected femalesall carrier malesmore affected malesan equal number of affected males and females
- 11. Multiple ChoiceA man who has a sex-linked allele will pass it on toall his daughtersall his sons1/2 of his daughters1/2 of his sons
- 12. Multiple ChoiceWhich of the following statements best describes what a Barr body is and its significance?it is an inactivated Y chromosome and results in a man being sterileIt is an inactivated Y chromosome, and the person who has it appears femaleIt is an inactivated X chromosome and results in females with half their cells have one X inactivated and in the other half of their cells have the other X inactivatedit is an inactivated X chromosome and results in females who are sterile
- 13. Multiple ChoiceIn humans, hemophilia is an X-linked recessive trait. If a man and a woman have a son who is affected with hemophilia, which of the following is definitely true?The mother carries an allele for hemophiliaThe father carries an allele for hemophiliaThe father is afflicted with hemophiliaboth parents carry an allele for hemophilia
- 14. Multiple ChoiceRed x white = pinkcodominancemultiple allelesincomplete dominanceepistasis
- 15. Multiple Choice
What is a gene?
Likelihood that something will happen
Passing of genetic traits from parent to offspring
One set of instruction for an inherited trait.
- 16. Multiple Choice
What is heredity?
Most commonly seen traits
Passing of genetic traits from parent to offspring
Likelihood of a future event happening
- 17. Multiple Choice
What is a dominant trait?
One set of instructions for an inherited trait
Entire genetic makeup of an individual
The trait observed in the first generation when parents that have different traits are bred.
- 18. Multiple Choice
What is a recessive trait?
Trait that is apparent only when two recessive alleles for the same characteristic is inherited.
An organisms appearance
Self pollination occurring
- 19. Multiple Choice
What is an allele?
The entire genetic makeup of an organism.
One of the alternative forms of a gene that governs a characteristic, such as hair color.
Crossing of like traits to produce a true bred
- 20. Multiple Choice
What is phenotype?
An organism’s appearance.
One set of instructions
The trait observed in the first generation when parents that have different traits are bred.
- 21. Multiple Choice
What is genotype?
Physical appearance
Result of a crossbred self pollination
The entire genetic makeup of an organism.
- 22. Multiple Choice
What is cross pollination?
Plants fertilizes other plants
When a plants can fertilize itself
- 23. Multiple Choice
What is a True-bred?
Offspring from the cross pollination
Offspring of a foster plant pollinating another offspring
Offspring of a self pollinating plant - all plants will have the same traits as the parents and siblings
- 24. Multiple Choice
What is self pollination?
When a plants can fertilize itself
Offspring from the cross pollination
- 25. Multiple Choice
What is a cross-bred?
Offspring from the cross pollination
Offspring of a self pollinating plant - all plants will have the same traits as the parents and siblings
Offspring of a hybrid self pollinator
- 26. Multiple Choice
A feature that has many different forms
Trait
Gene
Characteristic
- 27. Multiple Choice
Personal aspect that can only be genetically inherited from a parent to future generations
Trait
Gene
Characteristic
- 28. Multiple Choice
An example of a trait
Black tongue
The Force
Speaking Kryptonese
- 29. Multiple Choice
A = Heart Shaped face
a = Diamond shaped face
Which would be homozygous for the recessive?
Aa
aa
AA
- 30. Multiple Choice
B = Can climb walls
b = can NOT climb walls
Which would be Heterozygous for being able to climb walls?
BB
bb
Bb
- 31. Multiple Choice
M = Wild mustang
m = calm mustang
What would Mm show?
Calm
In between calm and wild
Wild
- 32. Multiple Choice
If the dominant is present the dominant will ______________.
disappear
reappear
show
- 33. Multiple Choice
Genes are made up of two alleles, one of which is “stronger” and the other is “weaker”. What does “weaker” refer to?
Needs to go to the gym
Very popular in the gene pool
Doesn't show up often in the gene pool
- 34. Multiple Choice
Which represents an allele?
RJ
T
smiles often
- 35. Multiple Choice
If Hh is crossed with hh is it possible to get a HH offspring?
NO
YES
NO CLUE
- 36. Multiple Choice
if gg is crossed with GG is it possible to get Gg as an offpsring
NO
YES
NO CLUE
- 37. Multiple Choice
If Mm is crossed with Mm, what % of the offspring will be Mn?
25%
50%
75%
- 38. Multiple Choice
if qq is crossed with Qq what ratio of the offspring will be qq?
1:4
2:4
3:4
- 39. Multiple Choice
If Dd is crossed with Dd, what fraction of the offspring will be DD?
1/4
2/4
3/4
- 40. Multiple Choice
Sexual reproduction in animals depends on the production of gametes. Which of these
processes produces gametes in animals?
mitosis
fertilization
meiosis
binary fission
- 41. Multiple Choice
Below is a diagram sketched out in a research scientist's journal. It shows a cell during Meiosis I. The scientist chose to sketch two different images showing the different ways chromosomes could possibly line up in the parent cell during Metaphase I.
What is significant about the stage of Meiosis I that the scientist had sketched in their journal?
It allows for the formation of new allele combinations in a gamete.
It allows the cell to maintain the same amount of DNA in the daughter cells.
It produces four sex cells.
It causes gene mutations which lead to disease in the offspring of the individual.
- 42. Multiple Choice
The diagram illustrates a process that occurs often during meiosis. The most likely result of this process is —
mutation in gametes
genetically diverse gametes
new types of cells forming
cancer in the ovaries
- 43. Multiple Choice
The greatest amount of genetic variation is produced in offspring that reproduce —
sexually through fission
asexually through budding
asexually through mitosis
sexually through meiosis
- 44. Multiple Choice
Which of the following could result if meiosis did not occur in the process of sexual reproduction?
Chromosomes would no longer contain genetic information.
Chromosomes would not be copied exactly.
Chromosome number would decrease with each generation.
Chromosome number would increase with each generation.
- 45. Multiple Choice
Compared with mitosis, the process of meiosis results in daughter cells that are-
diploid cells with the same number of chromosomes as the parent cells
diploid cells with a smaller number of chromosomes than the parent cells
haploid cells with the same number of chromosomes as the parent cells
haploid cells with a smaller number of chromosomes than the parent cells
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