(BOOST YOUR GRADES FOR 2024 EXAMS). Heredity and Genetics WGU - C652, Exam Review Questions and answers, 100% ACCURATE.

Heredity and Genetics WGU - C652, Exam Review Questions and answers, 100% ACCURATE. What does the process of meiosis result in? - -A reduction in the chromosome number Why is crossing-over one of the most important events in meiosis? - -It produces new combinations of alleles on chromosomes. Which mode of inheritance describes a condition that exclusively affects males? - -Y-linked A man with disease X and a woman without disease X have five sons and five daughters. All of their daughters inherit the disease, while none of the sons do.Which mode of inheritance is described? - - X-linked dominant In a hypothetical species of sheep, white is the dominant color. What are the possible offspring phenotypes from a pair of black sheep? - -Black offspring only In humans, having freckles is the dominant phenotype, while having no freckles is the recessive phenotype. A mother and father are both heterozygous for freckles. What is the likelihood of these parents having a child who lacks freckles? - -25% What will the produced progeny be if tall (D) is dominant to dwarf (d), and two homozygous varieties DD and dd are crossed? - -All tall Which event allows for the production of haploid gametes? - -Separation of homologous pairs Why is it important that the chromosomes separate correctly in both meiosis I and II? - -It ensures that the fertilized egg has the correct number of chromosomes. A CUG (leucine) is changed to GUG (valine).Which type of mutation is characterized by this single nucleotide change that results in a codon change? - -Missense mutation A change occurs in one nucleotide of a triplet within a protein-coding portion of a gene. This change results in a new triplet that codes for a stop codon. What is this mutation called? - -Nonsense mutation What are various forms of the same gene called? - -Alleles