BIO 1050 EXAM 4 QUESTIONS WITH
CORRECT ANSWERS
Of the following , after the oviduct, either a human unfertilized egg or a zygote would
next be in - Correct Answers -the uterus
Which of the following is a bacterial sexually transmitted disease, and therefore
treatable with antibiotics? - Correct Answers -gonorrhea
Homologous chromosomes are two chromosomes of the same type. Homologous
chromosomes - Correct Answers -are similar, but not exactly the same because one
came from mom and the other from dad.
Flower position is Mendelian. Axial flowers (A) are dominant to terminal flowers (a). In a
monohybrid cross of a plant with axial flowers to a plant with terminal flowers, the F2
generation would have a phenotype ratio of - Correct Answers -3 axial-flower plants : 1
terminal-flower plant
On average, in a Mendelian monohybrid cross the F2 generation has plants that -
Correct Answers -are 75% dominant phenotype and 25% recessive phenotype.
During human childbirth - Correct Answers -All of the other answers are correct
Which of the following is most likely to increase the diversity of alleles in a population? -
Correct Answers -gene flow due to new individuals joining the population
People with the IAIB genotype have type AB blood, not type A, not type B and not some
type half way between. This feature of blood type is an example of - Correct Answers -
codominance.
Bacteria are becoming resistant to antibiotics, such as methicillin. This increase in the
number of antibiotic-resistant bacteria is due to - Correct Answers -
Assume Mendelian genetics for this question. Yellow seed color (Y) is dominant to
green seeds (y). If a YY plant is crossed to a yy plant in the parental generation, the F1
plants will have a ____________ phenotype, and a ______ genotype. - Correct
Answers -yellow seed,Yy
, Which type of contraception also gives some protection against sexually transmitted
diseases? - Correct Answers -latex condoms
You start with a population with an allele frequency of 50% G and 50% g, and the
individuals breed randomly and there is no selection for or against G or g. After 100
generations, you would expect the allele frequency to be - Correct Answers -50% G and
50% g
In Labrador retriever dogs, black coat (B) is dominant to a chocolate coat (b), and coat
color is inherited in a Mendelian pattern. You have a black lab dog and want to know if it
is heterozygous or homozygous. You breed your black lab with a chocolate lab to find
out. Which result below is consistent with your black lab being heterozygous? - Correct
Answers -half of the puppies are black
Axial flowers (A) are dominant to terminal flowers (a) and Mendelian. On average, a
monohybrid cross of AA plants crossed to aa plants in the P generation would lead to a
genotype ratio in the F2 generation of - Correct Answers -1 AA : 2 Aa : 1 aa
A polygenic trait - Correct Answers -is a phenotype that is affected by more than one
gene.
Assume Mendelian inheritance for this question. If you cross a tall plant with
homozygous dominant genotype TT to a short plant with homozygous recessive
genotype tt, the offspring of that cross would have the genotype ratio of - Correct
Answers -all Tt
Assume a Mendelian character for cricket leg length for this question. There is a
population of 1000 crickets. 500 of the crickets are heterozygous for leg length, and 500
are homozygous for long-legs. Long legs are recessive. What is the phenotype
frequency of long legs in this population of crickets? - Correct Answers -50%
Which of the following is NOT evidence for evolution? - Correct Answers -a dog with
plenty of food gets fatter than a dog with scarce food
Consider a Mendelian characteristic of flower color, with purple (P) and white (p) traits.
If a plant is homozygous dominant for flower color, then you would expect the gametes
from that plant to be - Correct Answers -all P
If you claim two plants are the same species based on the basis of them having a
common ancestor, you are using the _____________ definition of a species. - Correct
Answers -phylogenetic
Which of the following does NOT change the allele combinations in a population? -
Correct Answers -mitosis
CORRECT ANSWERS
Of the following , after the oviduct, either a human unfertilized egg or a zygote would
next be in - Correct Answers -the uterus
Which of the following is a bacterial sexually transmitted disease, and therefore
treatable with antibiotics? - Correct Answers -gonorrhea
Homologous chromosomes are two chromosomes of the same type. Homologous
chromosomes - Correct Answers -are similar, but not exactly the same because one
came from mom and the other from dad.
Flower position is Mendelian. Axial flowers (A) are dominant to terminal flowers (a). In a
monohybrid cross of a plant with axial flowers to a plant with terminal flowers, the F2
generation would have a phenotype ratio of - Correct Answers -3 axial-flower plants : 1
terminal-flower plant
On average, in a Mendelian monohybrid cross the F2 generation has plants that -
Correct Answers -are 75% dominant phenotype and 25% recessive phenotype.
During human childbirth - Correct Answers -All of the other answers are correct
Which of the following is most likely to increase the diversity of alleles in a population? -
Correct Answers -gene flow due to new individuals joining the population
People with the IAIB genotype have type AB blood, not type A, not type B and not some
type half way between. This feature of blood type is an example of - Correct Answers -
codominance.
Bacteria are becoming resistant to antibiotics, such as methicillin. This increase in the
number of antibiotic-resistant bacteria is due to - Correct Answers -
Assume Mendelian genetics for this question. Yellow seed color (Y) is dominant to
green seeds (y). If a YY plant is crossed to a yy plant in the parental generation, the F1
plants will have a ____________ phenotype, and a ______ genotype. - Correct
Answers -yellow seed,Yy
, Which type of contraception also gives some protection against sexually transmitted
diseases? - Correct Answers -latex condoms
You start with a population with an allele frequency of 50% G and 50% g, and the
individuals breed randomly and there is no selection for or against G or g. After 100
generations, you would expect the allele frequency to be - Correct Answers -50% G and
50% g
In Labrador retriever dogs, black coat (B) is dominant to a chocolate coat (b), and coat
color is inherited in a Mendelian pattern. You have a black lab dog and want to know if it
is heterozygous or homozygous. You breed your black lab with a chocolate lab to find
out. Which result below is consistent with your black lab being heterozygous? - Correct
Answers -half of the puppies are black
Axial flowers (A) are dominant to terminal flowers (a) and Mendelian. On average, a
monohybrid cross of AA plants crossed to aa plants in the P generation would lead to a
genotype ratio in the F2 generation of - Correct Answers -1 AA : 2 Aa : 1 aa
A polygenic trait - Correct Answers -is a phenotype that is affected by more than one
gene.
Assume Mendelian inheritance for this question. If you cross a tall plant with
homozygous dominant genotype TT to a short plant with homozygous recessive
genotype tt, the offspring of that cross would have the genotype ratio of - Correct
Answers -all Tt
Assume a Mendelian character for cricket leg length for this question. There is a
population of 1000 crickets. 500 of the crickets are heterozygous for leg length, and 500
are homozygous for long-legs. Long legs are recessive. What is the phenotype
frequency of long legs in this population of crickets? - Correct Answers -50%
Which of the following is NOT evidence for evolution? - Correct Answers -a dog with
plenty of food gets fatter than a dog with scarce food
Consider a Mendelian characteristic of flower color, with purple (P) and white (p) traits.
If a plant is homozygous dominant for flower color, then you would expect the gametes
from that plant to be - Correct Answers -all P
If you claim two plants are the same species based on the basis of them having a
common ancestor, you are using the _____________ definition of a species. - Correct
Answers -phylogenetic
Which of the following does NOT change the allele combinations in a population? -
Correct Answers -mitosis
