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BIO 340 STUDY EXAM QUESTIONS AND ACCURATE SOLUTIONS A+ GRADED ARIZONA STATE UNIVERSITY.
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BIO 340 STUDY EXAM QUESTIONS AND ACCURATE SOLUTIONS A+ GRADED ARIZONA STATE UNIVERSITY.
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BIO 340 STUDY EXAM QUESTIONS ANDACCURATE SOLUTIONS A+ GRADED
ARIZONA STATE UNIVERSITY.
How many different types of gametes could an organism with the genotype
AABbCc produce?
Correct Answer -4
Genetic inheritance is being studied in a certain species of plant in which
orange flower color (O) is dominant to white (o) and round leaf shape (S) is
dominant to oval (s). A true-breeding orange-flowered, round-leaved male
plant (Plant A) is mated with a true-breeding white-flowered, oval-leaved
female plant (Plant B) to produce dihybrid offspring plant (Plant C).
Assuming normal Mendelian genetics and independent inheritance of these
two traits, which gametes might be produced by Plant C?
Correct Answer -Both OS and oS
In guinea pigs coat color is determined by a single gene with two alleles. A
guinea pig from a true-breeding black strain is mated with a guinea pig from
a true-breeding white strain. The F1 progeny are all black. Two of the F1
progeny are mated with each other.
What proportion of the F2 progeny is expected to be white?
Correct Answer -1/4
In guinea pigs coat color is determined by a single gene with two alleles. A
guinea pig from a true-breeding black strain is mated with a guinea pig from
a true-breeding white strain. The F1 progeny are all black. Two of the F1
progeny are mated with each other.
, What proportion of the black F2 progeny is expected to be homozygous?
Correct Answer -1/3
The presence of short hairs on leaves is controlled by dominant allele H.
Plants with genotype hh have smooth leaves. Two parental plants with
unknown genotype were crossed. What are the parental genotypes if F1=
32 Hairy and 11 smooth?
Correct Answer -Hh x Hh
The presence of short hairs on leaves is controlled by dominant allele H.
Plants with genotype hh have smooth leaves. Two parental plants with
unknown genotype were crossed.
What are the parental genotypes if F1=
0 Hairy and 24 smooth?
Correct Answer -hh x hh
Mendel imagined that seed color in pea plants is influenced by a gene with
two alleles in which the allele for yellow seeds (Y) is dominant over the
allele for green seeds (y). What would Mendel predict the seed colors would
be from a cross of a male plant with the mixed Yy genotype with a female
plant with the yy genotype?
Correct Answer -There should be 1 green seed for every 1 yellow seed.
In apples, the allele A is dominant for a big size apple and the allele R is
dominant for red color. You cross one tree that produces big yellow apples
and another tree that produces small red apples. Half of the offspring trees
produce big red apples and half produce big yellow apples. What are the
genotypes of the parents? (Pay attention to the phenotypic description of
the parents so you can easily eliminate the genotypes that do not match
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