Heterozygous is when...
  • the alleles are the same
  • the alleles are different
  • the alleles are absent
  • the alleles are present
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
  • recessive
  • dominant
  • lower case letter
  • both 
T - tall and t = shortIn the punnett square below, what belongs in the missing square
sc-6 sb-2-Punnett Squaresimg_no 335.jpg
  • tt
  • Tt
  • Bb
  • TT
G = green, g = yellowThe genotype for a yellow plant is...
  • GG
  • Gg
  • gg
  • all of the choices result in yellow
B = brown fur  b = white furIn the punnett square, what is the probability for white fur? 
sc-6 sb-2-Punnett Squaresimg_no 336.jpg
  • 0%
  • 25%
  • 50%
  • 75%
Which of the following alleles is homozygous (purebred) recessive?
  • Tt
  • tt
  • TT
  • t
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
  • 0 %
  • 25%
  • 50%
  • 75%
Dominant alleles are represented by a:
  • Male gene
  • lowercase letter
  • recessive trait
  • capital letter
Aa, DD, bB, yy are all examples of
  • genotypes
  • phenotypes
What you see, or the physical appearance.
sc-6 sb-2-Punnett Squaresimg_no 337.jpg
  • Genotype
  • Phenotype
  • Homozygous
  • Heterozygous
AA and Aa always show up as
  • dominant
  • recessive
aa always shows up as
  • dominant
  • recessive
Aa is
  • homozygous
  • heterozygous
Which of the following is a phenotype?
  • Aa
  • red hair
  • heterozygous
  • DNA
What is a punnett square?
  • graph used to predict the possible genotypes of offspring in a given cross
  • a graph used to predict the possible birth rate of offspring.
  • a graph used to predict the possible behavioral characteristics an offspring could have
  • None of the above
In a punnet square where are the parent alleles written?
  • Top and inside the boxes
  • Only on the left and right side of the boxes. 
  • outside of the boxes (top and left side)
  • All on the top side of the boxes
What you see, or the physical appearance.
sc-6 sb-2-Punnett Squaresimg_no 338.jpg
  • Genotype
  • Phenotype
  • Homozygous
  • Heterozygous
Genotype refers to the ...
sc-6 sb-2-Punnett Squaresimg_no 339.jpg
  • physical expression of the genes
  • the possible combination of alleles in a gene
  • whether an allele is dominant or recessive
  • how an organism will appear
What is the dominant trait?
sc-6 sb-2-Punnett Squaresimg_no 340.jpg
  • yellow pea seeds
  • green pea seeds
  • there is no dominant seed
  • Jolly green giant
Segments of chromosomes that contain coded information for an organisms trait
  • cells
  • genes
  • alleles
  • genotypes
The outward expression, or appearance, of a genetic trait is its
  • allele
  • pedigree
  • phenotype
  • inheritance
The designation Rr for a pea plant's peas shows that the plant is
  • purple
  • a hybrid
  • heterozygous
  • a true breeding plant
A model that is used to show possible outcomes of cross breeding is a
  • ratio
  • coin toss
  • pedigree
  • Punnett square
T - tall and t = shortIn the punnett square below, what belongs in the missing square
sc-5 sb-1-Punnett Squaresimg_no 137.jpg
  • tt
  • Tt
  • Bb
  • TT
What you see, or the physical appearance.
sc-5 sb-1-Punnett Squaresimg_no 138.jpg
  • Genotype
  • Phenotype
  • Homozygous
  • Heterozygous
What is the probability of heterozygous offspring?
sc-5 sb-1-Punnett Squaresimg_no 139.jpg
  • 25%
  • 50%
  • 0%
  • 100%
What allele combination should go in the missing box?
sc-5 sb-1-Punnett Squaresimg_no 140.jpg
  • AA
  • Aa
  • aa
  • none of these
Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?
sc-5 sb-1-Punnett Squaresimg_no 141.jpg
  • 25%
  • 1%
  • 10%
  • 0%
In a pedigree, what shape represents a male?
sc-5 sb-1-Punnett Squaresimg_no 142.jpg
  • circle
  • square
  • triangle
  • diamond
Which choice best represents the genotype of this cross?
sc-5 sb-1-Punnett Squaresimg_no 143.jpg
  • 1 Yy: 2 yy: 0 YY
  • 2 Yy: 2 yy: 0 YY
  • 3 Yy: 1 yy: 0 YY
  • 1 Yy: 3 yy: 0 YY
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
sc-5 sb-1-Punnett Squaresimg_no 144.jpg
  • 50 % Brown Hair and 50% Blond Hair 
  • 25 % Brown Hair and 75% Blond Hair 
  • 75 % Brown Hair and 25% Blond Hair 
  • 0% Brown Hair and 100% Blond Hair 
Which of the following genotypes is homozygous dominant?
  • A
  • Aa
  • AA
  • aa
Which of the following genotypes is heterozygous?
  • Bb
  • BB
  • bb
  • B
Which of the following is homozygous recessive?
  • Tt
  • tt
  • TT
  • T
T - tall and t = shortIn the Punnett square, what belongs in the missing square?
sc-5 sb-6-Punnett Squaresimg_no 115.jpg
  • tt
  • Tt
  • TT
B = brown fur b = white furIn the punnett square, what is the probability for white fur?
sc-5 sb-6-Punnett Squaresimg_no 116.jpg
  • 0%
  • 25%
  • 50%
  • 75%
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%
Which of the following alleles is purebred recessive?
  • Tt
  • tt
  • TT
Two brown eyed parents (Bb) have a baby. What is the chance their baby is blue eyed?
  • 0 %
  • 25%
  • 50%
  • 75%
Each one of the boxes on the Punnett square represents what probability of an offspring's genotype?
sc-5 sb-6-Punnett Squaresimg_no 117.jpg
  • 25%
  • 1%
  • 10%
  • 0%
Aa, DD, Ba, and yy are all examples of ---
  • genotypes
  • phenotypes
AA and Aa always show up as ---
  • dominant.
  • recessive.
What is ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? T = tall t = short
sc-5 sb-6-Punnett Squaresimg_no 118.jpg
  • 0 in 4
  • 1 in 4
  • 2 in 4
  • 4 in 4
A trait controlled by a recessive allele only appears in the organism's phenotype ---
  • if the organism is a hybrid.
  • if the organism does not have any dominant alleles.
  • if the organism is a purebred.
Brown eyes are dominant over blue eyes. What is the probability that the offspring will have brown eyes in this cross?
sc-5 sb-6-Punnett Squaresimg_no 119.jpg
  • 25%
  • 50%
  • 75%
  • 100%
If T=Tall & t=short, what is the genotypic ratio?
sc-7 sb-3-Punnett Squaresimg_no 258.jpg
  • 1:3
  • 3:1
  • 1:2:1
  • 2:2
B = brown fur  b = white furIn the Punnett square, what is the probability for white fur? 
sc-7 sb-3-Punnett Squaresimg_no 259.jpg
  • 0%
  • 25%
  • 50%
  • 75%
In the Punnett square shown, what must the genotype of the missing parent be?
sc-7 sb-3-Punnett Squaresimg_no 260.jpg
  • BB
  • Bb
  • bb
  • Tt
A heterozygous yellow pea plant's genotype would be:
sc-7 sb-3-Punnett Squaresimg_no 261.jpg
  • YY
  • yy
  • Yy
  • Yg
B - black, b - brown.  Two black mice mate and have some black and some brown mice.  What is the genotype of the parents?
  • BB x Bb
  • BB x bb
  • Bb x Bb
  • Bb x bb
What ratio of the offspring from the cross shown will be homozygous recessive for the  trait of tallness? 
sc-7 sb-3-Punnett Squaresimg_no 262.jpg
  • 0 in 4
  • 1 in 4
  • 2 in 4
  • 4 in 4
What are the possible genotypes for this cross?(Click the picture to see it without the text)
sc-7 sb-3-Punnett Squaresimg_no 263.jpg
  • TT = 25% Tt= 50% tt=25%
  • all tall
  • TT= 75% tt = 25%
  • Tt = 100%
In the Punnett square shown, what must the genotype of the missing parent be?
sc-7 sb-3-Punnett Squaresimg_no 264.jpg
  • BB
  • Bb
  • bb
  • Tt
B = brown fur  b = white furIn the Punnett square, what is the probability for white fur? 
sc-7 sb-3-Punnett Squaresimg_no 265.jpg
  • 0%
  • 25%
  • 50%
  • 75%
In a certain species of plant, the color purple (P) is dominant to the color white (p). According to the Punnett Square, what is the probability of an offspring being white?
sc-7 sb-3-Punnett Squaresimg_no 266.jpg
  • 25%
  • 0%
  • 100%
  • 50%
Purple (P) is dominant to the white (p). According to the Punnett Square, what is the probability of an offspring being purple?
sc-7 sb-3-Punnett Squaresimg_no 267.jpg
  • 25%
  • 0%
  • 100%
  • 50%
What is the yellow seed genotype?
sc-7 sb-3-Punnett Squaresimg_no 268.jpg
  • aa
  • Aa
  • AA
  • AA or Aa
What is the dominant trait?
sc-7 sb-3-Punnett Squaresimg_no 269.jpg
  • yellow pea seeds
  • green pea seeds
  • there is no dominant seed
  • Jolly green giant
What is the genotypic ratio here?
sc-7 sb-3-Punnett Squaresimg_no 270.jpg
  • 25% blue eye 75 % brown eye 
  • BB = 25% Bb = 50% bb = 25%
  • BB= 50 % bb = 50%
  • All brown eye
What does a Punnett Square do?
sc-7 sb-3-Punnett Squaresimg_no 271.jpg
  • tell you exactly what your offspring will look like
  • increase the chance you pass on recessive traits
  • predict genotypes and phenotypes in offspring
  • have no purpose but for Taylor to give us extra assignments
What genotype would go in box 2?
sc-7 sb-3-Punnett Squaresimg_no 272.jpg
  • BB
  • Bb
  • bb
What genotype would go in box 3?
sc-7 sb-3-Punnett Squaresimg_no 273.jpg
  • BB
  • Bb
  • bb
What genotype would go in box 1?
sc-7 sb-3-Punnett Squaresimg_no 274.jpg
  • BB
  • Bb
  • bb
Which of the following is homozygous dominant?
  • Jj
  • Rr
  • MM
  • ee
T - tall and t = shortIn the punnett square below, what belongs in the missing square
sc-7 sb-5-Punnett Squaresimg_no 100.jpg
  • tt
  • Tt
  • Bb
  • TT
B = brown fur  b = white furIn the punnett square, what is the probability for white fur? 
sc-7 sb-5-Punnett Squaresimg_no 101.jpg
  • 0%
  • 25%
  • 50%
  • 75%
What is the probability of heterozygous offspring?
sc-7 sb-5-Punnett Squaresimg_no 102.jpg
  • 25%
  • 50%
  • 0%
  • 100%
What allele combination should go in the missing box?
sc-7 sb-5-Punnett Squaresimg_no 103.jpg
  • AA
  • Aa
  • aa
  • none of these
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?
  • rr
  • R
  • RR
  • RR or Rr
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
sc-7 sb-5-Punnett Squaresimg_no 104.jpg
  • 50 % Brown Hair and 50% Blond Hair 
  • 25 % Brown Hair and 75% Blond Hair 
  • 75 % Brown Hair and 25% Blond Hair 
  • 0% Brown Hair and 100% Blond Hair 
A homozygous dominant brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color). 
  • 100 % tan
  • 100 % brown 
  • 50 % brown and 50% tan 
  • 75 % brown and 25 % tan 
If a heterozygous parent and a homozygous recessive parent mate, what percentage of their offspring will be dominant?
  • 25%
  • 50%
  • 75%
  • 100%
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