Please help me with these 3 questions True or False Assortme

Please help me with these 3 questions!

True or False. Assortment of chromosomes and crossovers together generate new combinations of alleles that differ from the parental combinations. True False True or False. If two genes are very far apart on the same chromosome, they can sometimes produce as many recombinants as genes that reside on different chromosomes. True False Mendel performed a monohybrid cross by crossing two pure-breeding parental lines, and then crossing the F1 individuals to produce an F2. He predicted that the F2 would contain a mix of heterozygous (Aa) and homozygous dominant (AA) individuals. How might his hypothesis be tested? Use the F2 offspring as one parent in a dihybrid cross Perform testcrosses with each of several of the dominant phenotype F2 offspring crossed to a homozygous recessive genotype Use F2 offspring as one parent in a trihybrid cross Perform testcrosses with each of several of the dominant phenotype F2 offspring crossed to a homozygous dominant genotype None of the above.

Solution

40.

The given statement is true. Independent assortment law is proposed by Mendel states that the different pairs of alleles are passed to offspring independently of each other resulting in new combinations of genes in the offspring that are different from parents. Crossing over is another phenomenon in which homologous chromosomes exchange segments resulting in the formation of new combination of genes in offspring and are different from parents.

41.

The given statement is true. The genes undergoing independent assortment may produce 50% recombinants whether the genes are located on nonhomologous chromosomes or genes are located far apart in a single chromosome.

42.

The result of F1 cross is expected having F2 individuals of both heterozygous and homozygous dominant individuals is tested by performing test cross between dominant phenotype in F2 offspring with a homozygous recessive genotype. Option 2 is correct.