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- 1. Multiple ChoiceAn organism's physical appearance or visible traits
fertilization
genotype
phenotype
homozygous
- 2. Multiple ChoiceWhen alleles are neither dominant nor recessive (As a result, both alleles are expressed in the offspring.).codominanceprobabilityrecessive allelePunnett Square
- 3. Multiple ChoiceThis trait always shows up in an organism when the allele is presentdominant allelecodominanceprobabilityrecessive allele
- 4. Multiple Choice
The brown eye trait is dominant over blue eyes. Which of the following genotypes best represents the phenotype for blue eyes?
BB
Bb
bb
bB
- 5. Multiple Choice
Each organism has 2 alleles for a particular trait. Where do these two alleles come from?
One from each parent
Both from one parent
Alleles do not come from parents
The kidney
- 6. Multiple Choice
What is the genotype for #15?
rr
Rr
RR
rR
- 7. 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 - 8. Multiple ChoiceWhich of the following genotypes is homozygous dominant?AAaAAaa
- 9. Multiple ChoiceWhat gender has an X and a Y chromosome?malefemale
- 10. Multiple Choice
In a pedigree, what shape represents a male?
circle
square
triangle
diamond
- 11. Multiple Choice
A woman has type AB blood and her husband has type O blood. The doctor tells them their child has type O blood. She thinks this is very strange. Why?
She can't be the mother of a type O child.
Her husband can't be the father of a type O child.
Type O blood is very rare.
There's nothing strange about it.
- 12. Multiple Choice
A white flowered plant is crossed with a red flowered plant. The two traits have codominance. What color are the offspring?
Red
White
Red and white spotted
Pink
- 13. Multiple Choice
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
0%
25%
50%
75%
- 14. Multiple Choice
Brown eyes are dominant over blue eyes. What is the probability that the offspring will have brown eyes in this cross?
25%
50%
75%
100%
- 15. Multiple ChoiceIn pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?Tall = T
Short = STall = T
Short = tTall = t
Short = TTall = TT
Short = tt - 16. Multiple Choice
Fill in the Yellow Box
AA
Aa
aa
- 17. Multiple Choice
What is the mother's genotype?
DD
Dd
dd
- 18. Multiple ChoiceGeorgette wants to breed her pet phoenixes, but she isn't sure if the babies will burst into blue flames or red flames. Her documents show that her female phoenix is homozygous dominant for red flames, while her male phoenix is homozygous recessive for blue flames. What color flames will the babies have?RedBluePurple50% Red, 50% Blue
- 19. Multiple ChoiceA heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?0%25%50%75%
- 20. Multiple ChoiceWhich statement best supports why many offspring look similar to their parents?Offspring inherit characteristics from one parent.Offspring inherit characteristics from both parents.Parents choose which characteristics to pass on to their offspring.Parents choose to change their appearance to match that of their offspring.
- 21. Multiple ChoiceBob is a tall, slender young man with red hair and blue eyes. Which couple would most likely be Bob’s parents?a slender, red-haired father and a tall, blue-eyed mothera tall green-eyed father with long brown hair and a short, brown-haired mothera short, green-eyed, black-haired father and a tall, brown haired, brown-eyed mothera short, plump brown-haired father with freckles and a short, blue-eyed red-haired mother
- 22. Multiple Choice
What are the possible combinations of offspring between a female pea plant with the alleles PP and a male pea plant with the alleles pp.
P= purple
p= white
all Pp
all PP
PP and Pp
Pp, and pp
- 23. Multiple Choice
Is this trait dominant or recessive?
dominantrecessive - 24. Multiple ChoiceHow many affected females are present?1234
- 25. Multiple ChoiceWhat is the mode of inheritance shown here?Sex LinkedAutosomal DominantAutosomal Recessive
- 26. Multiple ChoiceWhat is the mode of inheritance shown here?Autosomal RecessiveAutosomal DominantSex Linked
- 27. Multiple ChoiceWhat is the mode of inheritance shown here?Autosomal RecessiveAutosomal DominantSex Linked
- 28. Multiple ChoiceFreckles (F) are dominant over nonfreckles. What is the phenotype of individual #3Fffffrecklesnonfreckles
- 29. Multiple Choice
What is the genotype of the affected son and daughter at the bottom of this pedigree?
homozygous dominanthomozygous recessiveheterozygousCan't tell - 30. Multiple Choice
What is the relationship between person 1 in the first generation and person 2 in the third generation?
Father and Son
Father and Daughter
Grandfather and Granddaughter
Uncle and Niece
- 31. Multiple ChoiceWhich of the following combinations of sex chromosomes represent a female?XYXXYXX
- Answer choicesTagsAnswer choicesTags