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- 1. Multiple ChoiceHaving two of the same genes for the trait (TT, tt); Both dominant or both recessive.homozygous or purebredheterozygous or hybridtwin offspringpairs of chromosomes
- 2. Multiple ChoiceWhich of the following alleles is homozygous (purebred) recessive?TtttTTt
- 3. Multiple ChoiceDominant alleles are represented by a:Male genelowercase letterrecessive traitcapital letter
- 4. Multiple ChoiceTwo brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?0 %25%50%75%
- 5. Multiple ChoiceB=brown eyes
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.they have same phenotype and genotypethey have different genotypes and phenotypesthey have same phenotype but different genotypesthey have same genotype but different phenotypes - 6. Multiple Choicethe passing of genetic traits from parent to offspring.hereditytraitgeneallele
- 7. Multiple ChoiceWhat gender has an X and a Y chromosome?malefemaletransgenderall of the above
- 8. Multiple ChoiceWhat is the cause of some traits "skipping" a generation?dominant traitsrecessive traitsmutationsnatural selection
- 9. Multiple ChoiceHow many alleles (letters) do each person carry for a trait?1234
- 10. Multiple Choice
What you see, or the physical appearance.GenotypePhenotypeHomozygousHeterozygous - 11. Multiple ChoiceIn a pedigree, what shape represents a male?circlesquaretrianglediamond
- 12. Multiple ChoiceWhat type of heredity is shown in the pedigree?
(hint: check your notes - "modes of inheritance")Sex-Linked DominantSex-Linked RecessiveAutosomal DominantAutosomal Recessive - 13. Multiple ChoiceThe genetic code carriesmolecules through the cell membraneATP across the cytoplasminstructions for translating information into proteinslysosomes around to kill bacteris
- 14. Multiple ChoiceMutated DNA sequences that can be passed from parent to offspring --occur in somatic cells (body cells)occur in gametic cells (sex cells)are rejected by meiosisonly occur if the parent is exposed to harmful substances
- 15. Multiple ChoiceThe separation of DNA fragments using electric current is calledgel electrophoresiskaryotypingchromosome paintingpolymerase chain reaction
- 16. Multiple ChoiceWhat process allows scientists to create a group of genetically identical organisms?CloningDNA fingerprintingDNA recombinationGenetic modification
- 17. Multiple ChoiceWhich of the suspects match the blood found at the crime scene?123
- 18. Multiple ChoiceWho was the father of geneticsSaganIssac NewtonGregor MendelC.jenkins
- 19. Multiple ChoiceWhat are small stretches of DNA that code for traitsNucleusChromosomesGeneCentromeres
- 20. Multiple Choice
Human blood type is determined by multiple alleles (A, B, and O). Which ratio would result from a cross between a man with Type AB blood and a woman with Type O blood?
A. 50% Type A, 50% Type O
B. 75% Type A, 25% Type B
C. 50% Type A, 50% Type B
D. 100% Type O
- 21. Multiple Choice
A cross between a red flower and a white flower produces red and white spotted flowers. Which type of inheritance pattern is indicated by these results?
A. polygenic
B. codominance
C. multiple alleles
D. incomplete dominance
- 22. Multiple Choice
Coat color in a dog breed is determined by incomplete dominance where three colors are produced (Brown, tan and white), and the brown coat allele (B) has incomplete dominance over the white coat allele (b). Which offspring ratio would be expected from a cross between a brown dog and a white dog?
A. 2 BB: 2 Bb
B. 4 Bb
C. 1 BB: 2 Bb: 1 bb
D. 2 BB: 2 bb
- 23. Multiple Choice
The Punnett square above illustrates a dihybrid cross for cats. The traits are long tail (s), short tail (S), brown hair (B), and white hair (b). What are the genotypes of the parents that produces the probabilities shown in the Punnett square above?
A. Ssbb x ssBb
B. Ssbb x SSBB
C. SsBb x SsBb
D. SSBb x SsBb
- 24. Multiple Choice
A woman develops skin cancer after prolonged exposure to ultraviolet radiation from sun tanning. Would her future children be at risk of inheriting this skin cancer?
A. Yes, if she had a baby after developing skin cancer.
B. Yes, this is a mutation in the DNA of her somatic cells.
C. No, this condition does not affect the woman's egg cells.
D. No, babies cannot get skin cancer because they are immune.
- 25. Multiple Choice
When a plant with red flowers (CRCR) is crossed with a plant that has white flowers ( CWCW), the resulting offspring has pink flowers ( CRCW). If two pink flowers are crossed, what is the probability of having a pink flower?
A. 0%
B. 25%
C. 50%
D. 75%
- 26. Multiple ChoiceHemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?XHXhXhXhXHYXhY - 27. Multiple Choice
Males are more likely to suffer from a sex-linked disease or disorder because
males have two X chromosomes
males have less DNA
males have 1 X chromosome, so the disorder is more likely to be expressed
- 28. Multiple Choice
Which of the following genotypes would be a carrier, but not have the disease?
RR
Rr
rr
r
- 29. Multiple ChoiceIf a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?sex-linked traitpolygenic traitcodominant traitincomplete dominance trait
- 30. Multiple Choice
What must occur for a girl to be colorblind?
each parent must be colorblind
each parent must have the dominant allele for colorblindness
each parent must have the recessive allele for colorblindness
her father must have normal vision
- 31. Multiple Choicecondition in which both alleles for a gene are expressed when present - both traits are visibleCodominanceDominanceComplete dominanceIncomplete dominance
- 32. Multiple Choicewhen one allele is not completely dominant over the other - blending of two traitsCodominanceComplete dominanceincomplete dominancenone of these
- 33. Multiple Choicethis image is an example ofcodominancedominanceincomplete dominance
- 34. Multiple Choicethis image is an example ofcodominancedominanceincomplete dominance
- 35. Multiple ChoiceIf two parents have type AB blood, what is the probability that their child will have type O blood?0%25%50%100%
- 36. Multiple Choice
It is the transfer of genetic material for the purpose of treating human disease.
chemotherapy
gene therapy
gene transfer
gene editing
- 37. Multiple Choice
It is the gene pair that determines a trait in an individual only if the other memberof the pair is also recessive.
Recessive Gene
Dominant Gene
Genetic Gene
All of the above
- 38. Multiple ChoiceProcess of adding or changing DNA to alter genes within an individual’s cells to treat disease.stem cell researchcloninggene therapyselective breeding
- 39. Multiple Choice
How many chromosomes do humans usually have?
twenty-three
four
forty-six
hundreds
- 40. Multiple Choice
What is a genome?
molecular structure
DNA
genes
a complete set of chromosomes
- 41. Multiple ChoiceWho is the father?Dad 1Dad 2Dad 3can not be determined
- 42. Multiple Choice
In which stage of MEIOSIS does crossing over occur? (The exchange of genetic material between chromosomes in a tetrad.)
Anaphase I
Metaphase I
Prophase I
Telophase I
- 43. Multiple Choice
What is unique to Prophase I- is that the duplicated chromosomes pair up to form _______.
a centrosome
a tetrad
the mitotic spindle
sister chromatids
- 44. Multiple Choice
Which of the following are CORRECT observations about the differences between MITOSIS and MEIOSIS? (Check all that apply.)
Mitosis produces cells that identical to the parent cell.
Meiosis produces cells that have half the number of chromosomes as the parent cell.
All cells go through INTERPHASE as part of the cell cycle, whether it goes to mitosis or meiosis next.
In both types of cell division, the chromosomes are only duplicated once.
Only in Mitosis, do you see chromosomes pair up to form a tetrad.
- 45. Multiple Choice
Uncontrolled growth can result in:
G0 phase
S phase
Replication
Cancer
- 46. Multiple Choice
Non dividing state of the cell cycle
Interphase
Mitosis
Telophase
Cytokinesis
- 47. Multiple Choice
The division of the cytoplasm is called?
anaphase
mitosis
cytokineses
G0
- 48. Multiple Choice
The division of chromosomes is called?
anaphase
mitosis
cytokineses
G0
- 49. Multiple Choice
After mitosis the number of chromosomes in the newly created cells will be:
Half the number of the original cell
The same number as the original cell
Twice as much as the original cell
- 50. Multiple Choice
Having only one copy of each chromsome
haploid
diploid
triploid
octoploid
- Answer choicesTagsAnswer choicesTags