These electron microscopy images are visual evidence that genes are “split” in eukaryotes. In this experiment, genomic DNA was hybridized with processed, purified RNAs (both from the adenovirus). DNA:RNA hybrids look darker than single-stranded DNA. Questions 3-4 follow this experiment. What would the TEM images look like if the introns were removed at the level of the DNA and not the RNA?

Match the word to it’s definition

In terms of database architecture, which component translates the query processor instructions into low-level file-system commands and is responsible for indexing the data?

In the relational algebra, compatible tables have the same _____.

Which database role focuses on database storage, response times, and optimization?

During database design, an ER _____ and _____ are usually developed in parallel.

In a relational database model, an attribute refers to which concept?

In the fruit fly Drosophila, eye color is an X-linked trait, with the allele for red (R) dominant to the allele for white (r).  Which of the following is true of a cross in which the P generation is a white-eyed female crossed with a red-eyed male.  Feel free to use scratch paper.

Which of the following is NOT one of the bases found in a DNA molecule?

Tay-Sachs disease is a rare recessive autosomal disease.  Jacob & Sarah are married and have a daughter.  None of the three of them have the disease, but both Jacob’s mother and Sarah’s father did have the disease. What is the probability that the couple’s daughter is a carrier for Tay-Sachs (i.e. heterozygous at the T-S locus)?  (Draw a pedigree on scratch paper if you wish, then select your answer from the choices below.)