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Suppose a gene that codes for flower color is linked with a gene that codes for leaf shape. What do you know?
they are close together on the same chromosome
Which of the following phrases best describes the function of meiosis?
reduces chromosome number by half, produces gametes
Which observation of dihybrid crosses led to Mendel's law of independent assortment?
the presence of one trait did not affect the presence of another
Which of the following best describes the genetic material a person receives from his or her father?
22 autosomes and an X or Y chromosome
What is the probability that the offspring of a cross between a homozygous recessive parent and a heterozygous parent will be homozygous recessive?
In Mendel's monohybrid cross of a purebred white-flowered plant and a purple-flowered plant, the F generation
showed only the dominant trait
Crossing over is an important factor in increasing the
genetic diversity by making new allele combinations
When an organism has two alleles at a particular locus that are different, the organism is called
When Mendel crossed plants that were purebred purple-flowered with plants that were purebred white-flowered, the resulting offspring all had this F generation gave rise to white-flowered plants as well as purple. As a result, Mendel determined that individual traits are
inherited as discrete units
Mendel's law of segregation states that organisms inherit two copies of each gene and that
organisms donate copies to offspring in predictable ratios
Which phrase best describes the process of crossing over?
pairs of homologous chromosomes exchange segments
Which of the following observations did Mendel make as a result of his experiments with dihybrid crosses?
different traits are inherited separately
Which of the following statements is true of heterozygous alleles?
they are different forms of the same gene on homologous chromosomes
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