Enzyme which seals dna fragments together b. chemical mutagen c. type of mutation that produces a reading frameshift d. substance which induces change in dna bases e. method by which dna is copied at cell division f. a change in dna base sequence g. procedure to screen chemicals for mutagenic properties h. closed circular dna, with few genes, non-essential to the cell i. chemicals produced by bacteria which kill other bacteria

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Which units ate used to measure both velocity and speed? check all that apply

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?