Every cell in the human body has two alleles that condense into single chromosomes held together by a centromere. These “sister” chromaatids replicate and pair with the newly made homologous chromosomes. In this exercise we will follow the movement of the chromosomes through meiosis I and II to create haploid […]

A line of Drosophila melanogaster with ebony body and sepia eyes (line A) is crossed to a line with tan body and red eyes (line B). The F1 are all tan-bodied, red-eyed. a) What proportion of gametes produced by the F1 have the dominant allele for both loci? What proportion […]

Chapter 11. An example of a quantitative variable is the telephone number of an individual.  2. If we examine some of the population measurements, we are conducting a Sample of the population. 3. An example of a nominal scale variable is the make of a car.4. Credit score is an […]

Part 1: 1- To what extent would filamentous cyanobacteria be considered multicellular? 2- Which of the following words or phrases describes the heterotrophic bacteria, the cyanobacteria, both or neither?a. lack of nuclear envelopeb. photosynthesize similarly to green plantsc. possess a cell walld. eukaryotic cellse. symbiotic relationshipsf. saprobes Part 2: 1- […]