biology test questions

Question 1 (10 points) Chromatids are 1. attached at the centriole. 2. "a pair of chromosomes, one from the mother and one from the father." 3. attached at their centromeres. 4. identical until crossing over occurs. 100.0% 5. both 3 and 4 are correct Score: 10.0 / 10.0 Question 2 (10 points) "Different, or alternative, forms of the same gene are called" 1. genetomorphs. 100.0% 2. alleles. 3. mutants. 4. chromatids. 5. homologous. Score: 10.0 / 10.0 Question 3 (10 points) "If a diploid organism has a genome consisting of 4(four) chromosomes, it can produce ____different combinations of maternal and paternal …

…pair from the father and one from the mother." 4. Pair up during meiosis. 100.0% 5. All of the above Score: 10.0 / 10.0 Question 8 (10 points) Sister chromatids of each chromosome are separated from each other during 1. Metaphase I 2. Anaphase I 3. Metaphase II 100.0% 4. Anaphase II 5. Telophase II Score: 10.0 / 10.0 Question 9 (10 points) Prokaryotes reproduce by 1. binary fission. 2. mitosis. 3. meiosis. 4. 1 and 2 0.0% 5. 2 and 3 Score: 0.0 / 10.0 Question 10 (10 points) Which of the following is the same as a fertilized egg? 1. Primary oocyte 2. Primary spermatocyte 3. Mature ova 100.0% 4. Zygote Score: 10.0 / 10.0