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1 two dominant alleles expressed
2 the set of alleles for a character
3 when several genes influence a character
4 a phenotype that is intermediate between
two parents
8 the expressed form of a character
9 the trait not expressed
11 Biotechnology such as GMOs can do this
to the diversity of species
12 what the boxes of a punnet square
represent
15 two of the same alleles present
Across
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If NN=Red, Nn=Pink and nn=white, what is the inheritance
pattern?
the different versions of a gene or letters of a genotype
if a red and purple flower cross and the offspring is red and
purple
law of heredity involving one trait
if you treat the symptoms of a genetic disorder, will it prevent it
from passing to the offspring?
what the genotypes on the outside of a punnet square represent
the physical appearance of a character
law of heredity involving more than one trait
hair color uses this type of inheritance
two different alleles present
1. 2 parents are both heterozygous for a widow’s peak, a dominant trait. What is the chance that their
offspring will have a straight hair line?
2. What are the possible genotypes of gametes:
Chromosome #1 = Bald (B) Hair(b)
Chromosome #2 = Brown eyes (E) Green (e)
3. Two fish are crossed, among the offspring 45% have 1 black dot (dominant) and 55% have multiple
black dots (recessive). What are most likely the genotypes of the parents?
Only complete the remainder if the assignment is late
76. When a red four o'clock plant was crossed with a four o'clock plant they produced pink four o'clock plants. Can
you explain why?
78. Our famous math teacher Mr. Stork noted that genetic traits for seeds are noted as follows: L = long, w =
wrinkled, R= ribbed, l=short, W=smooth, y=white, r=grooved. what would be the genotype for a short, wrinkled,
yellow, grooved seed?
88. Two white sheep produce a black offspring. What must the parents’ genotype for color be? What is the
possibility that the next offspring will be back?
89. What kind of gametes would be produced by organism having the following genotypes?
A) AaBB B) aaBB C) AAbb D) AaBBCc
91. An extra finger in man occurs rarely. It is due to a dominant gene. Suppose one parent is normal and the other
parent has an extra finger, but is heterozygous for the trait. What is the probability that their next child will be
normal ? (Use a diagram to show your results) F = dominant, f = recessive.)
92. Albinism (lack of pigment) in man is caused by recessive gene. If normal parents have an albino child, what is
the probability that their next child will be normal for color? (Use a diagram to show your results) A = dominant, a=
recessive.)
93. If a woman who is not a carrier for hemophilia is married to a man who is a hemophiliac. What percentage of
their male offspring could be expected to be hemophiliacs?
96. Why is it not possible for a male to be heterozygous for color blindness?
98. Red fruit is dominant to yellow fruit (R = dominant; r = recessive) in tomatoes. Tallness (T) is dominant to
shortness (t) in these plants. What phenotype and genotype ratios would you predict for the offspring of parent
plants, one of which is red homozygous and tall homozygous, and the other of which is red heterozygous and tall
heterozygous?
decrease
polygenic
codominance
incompletedominance
offspring
Parents
codominance
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Alleles
Dominant
Recessive
Homozygous
Heterozygous
Genotype
Phenotype
segregation
independent assortment
Polygenic Inheritance
Incomplete dominance