ALAT Chapter 17 Practice Test with answers solved and verified 2023

ALAT Chapter 17 Practice Test with answers solved and verified 2023What is the scientific study of heredity called? a. Transgenesis b. Genetic engineering c. Genetics d. Traits c. Genetics A permanent change in an inherited or genetic factor is called a: a. persistent trait. b. transferred characteristic. c. rotation. d. mutation. d. mutation. What do genes consist of? a. DNA in the chromosome b. DNA in the ribosome c. RNA in the chromosome d. RNA in the ribosome a. DNA in the chromosome What do chromosomes consist of? a. Proteins and fat tissue b. RNA and organelles c. Amino acids d. DNA and proteins d. DNA and proteins What is the term for an animal's observable characteristics, including its physical appearance and internal physiology? a. Genotype b. Phenotype c. Karyotype d. Histiotype b. Phenotype What is it called when an animal contains altered DNA designed to turn off a specific gene? a. Punchout b. Knockin c. Knockout d. Recessive c. Knockout If an animal has an impairment in part of the immune system, it is referred to as being: a. immunoabnormal b. immunodeficient c. pathodeficient d. nonfunctional. b. immunodeficient Which of the following is NOT a standard method to check for pregnancy in rodents? a. Weight monitoring b. Urine dip stick test c. Taking a radiograph (x-ray) d. Gentle palpation b. Urine dip stick test In relation to rodents, what does genetic engineering mean? a. Genes are specified in an engineered design. b. Rodents were cross-bred and then inbred to create special strains. c. Genes were manipulated in the laboratory and transferred into an animal. d. Engineered genes were removed from a mouse and cultured in the laboratory c. Genes were manipulated in the laboratory and transferred into an animal.