Two sister chromatids are joined at the centromere prior to meiosis. which statement is correct? a. these chromatids make up a diploid chromosome. b. barring mutation, the two sister chromatids must be identical. c. the cell that contains these sister chromatids must be haploid.

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

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

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?