Quiz 1 (Evolutionary history in an organism's genome

Which of the following genes will you use to identify bacteria in soil sample?

• mtDNA

• y-STR

• 16s rRNA

• RFLP

Which of the following genes will you use to identify origins of the Kapampangans?

• mtDNA

• y-STR

• 16s rRNA

• RFLP

Which of the following genes will you use for genotyping or variability of Arachis hypogaea (peanut) in the Philippines?

• mtDNA

• y-STR

• 16s rRNA

• RFLP

If you are to confirm the connection of Prince Archie (son of Prince Harry and Meghan) to Prince Prince Philip, Duke of Edinburgh, which of the following genes will you use?

• mtDNA

• y-STR

• 16s rRNA

• RFLP

If two different genes are homologous, what do they share?

• Function

• Ancestor

• DNA

• Species

What event creates orthologous genes?

• 1. The independent need for a trait with a specific function in two different species

• 1. A mutation in gene duplication within a single species

• 1. The evolution of a new species from another one

• 1. Pure dumb luck

These are genes with sufficient sequence similarity because have evolved from a common ancestor anywhere in evolutionary time.

• Analogs

• Homologs

• Ancestor

• Sister genes

Which of the following contributes to increase in number of genes in an organism?

• orthologs

• analogs

• paralogs

• homologs

What do we call groups of related genes within an organism's genome?

• Gene families

• Gene duplicates

• Sister genes

• Homologous genes

There are 1,200 functional olfactory receptor genes in the mouse genome and only 550 in the human genome. Which of the following is a possible reason?

• A whole genome duplication of the mouse genome occurred in the recent past.

• Primate genomes are an order of magnitude smaller than other mammalian genomes.

• Many olfactory genes were duplicated in the mouse lineage.

• 
  Genes that are rarely used can degenerate because of reduced selective pressure.