What do we mean when we use the terms monohybrid cross and dihybrid cross? A monohybrid...
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What do we mean when we use the terms monohybrid cross and dihybrid cross? A monohybrid cross involves a single parent, whereas a dihybrid cross involves two parents. A dihybrid cross involves organisms that are heterozygous for two characters that are being studied, and a monohybrid cross involves organisms that are heterozygous for only one character being studied. A monohybrid cross is performed for one generation, whereas a dihybrid cross is performed for two generations. A monohybrid cross results in a 9:3:3:1 ratio whereas a dihybrid cross gives a 3:1 ratio. Question 42 (2 points) Two plants are crossed, resulting in offspring with a 3:1 ratio for a particular trait. What does this suggest? that the parents were true-breeding for contrasting traits that the trait shows incomplete dominance that a blending of traits has occurred that the parents were both heterozygous for a single trait A sexually reproducing animal has two unlinked genes, one for head shape (H) and one for tail length (T). Its genotype is HhTt. Which of the following genotypes is possible in a gamete from this organism? tt Hh HhTt OT Онт Question 44 (2 points) The fact that all seven of the pea plant traits studied by Mendel obeyed the principle of independent assortment most probably indicates which of the following? None of the traits obeyed the law of segregation. The diploid number of chromosomes in the pea plants was 7. All of the genes controlling the traits were located on the same chromosome. All of the genes controlling the traits behaved as if they were on different chromosomes What do we mean when we use the terms monohybrid cross and dihybrid cross? A monohybrid cross involves a single parent, whereas a dihybrid cross involves two parents. A dihybrid cross involves organisms that are heterozygous for two characters that are being studied, and a monohybrid cross involves organisms that are heterozygous for only one character being studied. A monohybrid cross is performed for one generation, whereas a dihybrid cross is performed for two generations. A monohybrid cross results in a 9:3:3:1 ratio whereas a dihybrid cross gives a 3:1 ratio. Question 42 (2 points) Two plants are crossed, resulting in offspring with a 3:1 ratio for a particular trait. What does this suggest? that the parents were true-breeding for contrasting traits that the trait shows incomplete dominance that a blending of traits has occurred that the parents were both heterozygous for a single trait A sexually reproducing animal has two unlinked genes, one for head shape (H) and one for tail length (T). Its genotype is HhTt. Which of the following genotypes is possible in a gamete from this organism? tt Hh HhTt OT Онт Question 44 (2 points) The fact that all seven of the pea plant traits studied by Mendel obeyed the principle of independent assortment most probably indicates which of the following? None of the traits obeyed the law of segregation. The diploid number of chromosomes in the pea plants was 7. All of the genes controlling the traits were located on the same chromosome. All of the genes controlling the traits behaved as if they were on different chromosomes
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