Genetics I Genetics I 1 / 10 What process produces gametes with half the number of chromosomes as somatic cells? Mitosis Meiosis Fertilization Transcription 2 / 10 What is the term for the observable characteristics of an organism resulting from its genotype and environmental influences? Phenotype Genotype Chromosome Allele 3 / 10 Which of the following genetic disorders is caused by a defect in the X chromosome and primarily affects males? Down syndrome Turner syndrome Duchenne muscular dystrophy Hemophilia 4 / 10 In a monohybrid cross between two heterozygous individuals (Aa x Aa), what is the probability of offspring inheriting the recessive trait? 0% 25% 50% 75% 5 / 10 What is the genotype of an individual with two identical alleles for a particular trait? Homozygous Heterozygous Dominant Recessive 6 / 10 What term describes the different forms of a gene? Chromosome DNA sequence Genotype Allele 7 / 10 In humans, how many chromosomes are found in a normal somatic cell? 23 pairs 46 pairs 22 pairs 44 pairs 8 / 10 Which scientist is credited with discovering the principles of inheritance? Charles Darwin Gregor Mendel Francis Crick James Watson 9 / 10 What is the basic unit of heredity? Chromosome DNA Gene Allele 10 / 10 Which of the following best defines genetics? The study of individual genes and their functions The study of how traits are passed from parents to offspring The study of ecosystems and their interactions The study of geological processes and landforms Your score isThe average score is 0% 0% Restart quiz
