Bio 322 Exam Questions and Complete Solutions

A variation of a gene is called an allele A long piece of DNA that contains many genes and maybe upwards of 100,000,000 base pairs long is called a chromosome Which of the following is a unique component of DNA? Deoxyribose Which is the largest biomolecule? A) a gene in the genome B) an RNA transcript of that gene C) A cdna copy of the gene D) an RNA transcript version that lack one exon after it has been spliced A) a gene in the genome Which is true about natural selection? Genotypes increasing in frequency in a population are under positive selection Gene regulation takes place Before transcription through transcription factors, after transcription factors bind but in the steps before RNA polymerase works, after transcription due to the stability of mrna, and after mrna is translated by the action of sirna Gene families are A group of orthologs that all came from a single copied gene which were co-opted for new Which of the following would contain genetic material that is 100% identical? A) homologous chromosomes B) Sister chromatids C) x and Y chroomosomes D) all the above B) sister chromatids Which of the following processes depends on complimentary base pairing? A) protein translation B) RNA transcription C) Hybridization D) All the above D) all the above Typical human karyotype contains ___ autosomal pairs and ___ sex chromosome pair. (2n=46) 22 and 1