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25 terms

Biology - Genetics Problems (Set 2)

another human trait that shows a similar inheritance pattern and frequency of distribution is
what are the possible phenotypes of offspring produced between two pink-flowered four o'clock plants?
white- flowered,red-flowered, an pink-flowered
how many different phenotypes can be produced by a pair of codominant alleles?
a trait controlled by four alleles is used to have
multiple alleles
how many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY?
what is the probability that the offspring of a homozygous dominant individual and a homozygous recessive individual will exhibit the dominant phenotype?
when mendel crossed pea plants with two contrasting traits, such as flower color and plant height,
he found that the inheritance of on trait did not influence the inheritance of the other trait
situations in which one allele for a gene is not completely dominant over another allele for that gene are called
incomplete dominance
the difference between a monohybrid cross and dihybrid cross is that
monohybrid crosses involve self-pollination, while dihybrid crosses involve cross-pollination
the passing of traits from parents to offspring is called
a cross between a white rooster and a black hen results in 100% blue Andalusian offspring. When two of these blue offspring are mated, the probably phenotypic ration seen in their offspring would be
25% black, 50% blue and 25% white
a man heterozygous for blood type A marries a woman heterozygous for blood type B. the chance that their first child will have type O blood is
what fraction of the offspring resulting from a heterozygous x heterozygous for both traits?
in mendel's experiment, the probability that an F2 plant would be tall was
mendel obtained his P generation by allowing the plants to
the principles that probability can be used to
predict the traits of the offspring produced by genetic crosses
what is the expected phenotypic ration resulting from a homozygous dominant x heterozygous monohybrid cross?
which of the following traits is controlled by multiple alleles in humans?
blood type
and individual heterozygous for a trait and an individual homozygous recessive for the trait are crossed and produce many offspring that are
of two different phenotypes
when roan cattle are mated, 25% of the offspring are red, 50% are roan, and 25% are white. Upon examination, it can be seen that the coat of a roan cow consists of both red and white hairs, this trait is one controlled by
codominant alleles
a cross of a red cow with a white bull produces all roan offspring. This type of inheritance is known as
true-breeding pea plants always
produce offspring with only one form of a trait
in pea plants, yellow seeds are dominant over green seeds. What would be the expected genotype ratio in a cross between a plant with green seeds and a plant that is heterozygous for seed color
the type of inheritance shown when a red-flowering plant is crossed with a white-flowering plant and only pink-flowering plants are produced is
incomplete dominance
what fraction of the offspring resulting from a heterozygous x heterozygous dihybrid cross are homozygous recessive for both traits?