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- 1. Multiple Choice
What type of genetic cross involves only one trait?
Dihybrid cross
Monohybrid cross
Trihybrid cross
Polyhybrid cross
- 2. Multiple Choice
Which of the following is a non-Mendelian trait?
Incomplete dominance
Monohybrid cross
Dihybrid cross
Mendelian inheritance
- 3. Multiple Choice
What influences gene expression outside the DNA sequence?
Epigenetics
Genetics
Codominance
Polygenic traits
- 4. Multiple Choice
What genetic concept is highlighted in the video?
Cell division
Pedigrees
Photosynthesis
Evolution
- 5. Multiple Choice
What is the phenotype ratio for a cross between one black and one speckled chicken?
1:2:1
3:1
1:1
2:1
- 6. Multiple Choice
What is the genotype for blood type A?
AA or AO
BB or BO
AB
OO
- 7. Multiple Choice
What do shaded shapes represent in a pedigree?
Dominant traits
Recessive traits
Carriers
Affected individuals
- 8. Multiple Choice
The dominant trait isyellow pea seedsgreen pea seedsthere is no dominant seedJolly green giant - 9. Multiple Choice
A monohybrid cross uses a 4 square punnett square. How many trait(s) does it cross?
1
2
3
4
- 10. Multiple Choice
If a plant that is homozygous tall and wrinkled is crossed with a short, wrinkled plant, which percentage of genotypes would most likely be found in the first-generation offspring?
50% TTss, 50% ttSS
100% TtSs
100% Ttss
50% TtSS, 50% ttSS
- 11. Multiple Choice
A purebred tall (TT) pea plant is crossed with a purebred short (tt) pea plant. All the offspring are tall. What is the most likely genotype of the offspring? ______ (use scratch paper to figure it out
Tt
tt
TT
none are correct
- 12. Multiple ChoiceIn cacti, long arms (A) are dominant to short arms (a). Suppose 2 heterozygous cacti are crossed. What percentage of their offspring are expected to have short arms?0%25%75%100%
- 13. Multiple Choice
What is the genotypic ratio of the offspring?
3:1
1:3
1:2:1
2:2
- 14. Multiple Choice
If a trait is recessive, it needs to be inherited from ___ parents to be 'expressed'.
one
both
- 15. Multiple Choice
If polydactyly (born with extra toes/fingers) is a dominant trait in cats, then which of the following genotype(s) would produce a cat with extra toes? (Select all that apply.)
TT
Tt
tt
- 16. Multiple ChoiceWhat is the yellow seed genotype?aaAaAAAA or Aa
- 17. Multiple ChoiceA tall plant (TT) is crossed with a tall plant (Tt). What is the phenotype of the offspring?50% homozygous dominant; 50% heterozygous; 100% tall100% homozygous dominant; 100% tall25% homozygous dominant; 75% heterozygous; 100% short50% homozygous dominant; 50% heterozygous; 100% short
- 18. Multiple ChoiceIn rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?It is BB.It is BbIt is brownIt is bb.
- 19. Multiple ChoiceWhat is the phenotype in the bottom right square? (Yellow is dominant and green is recessive)yyYyyellowgreen
- 20. Multiple ChoiceMendel's law of segregation states that during meiosis, the alleles that control each trait separate, and only _________________ from each pair is/are passed to the offspringone allelethe dominant traittwo allelesthe recessive trait
- Answer choicesTagsAnswer choicesTags