Question
At a wavelength of ______ single-stranded DNA absorbs more light compared to double stranded DNA: a. 280 nanometers b. 260 nanometers c. 280 millimeters d. 260 millimeters e. 37 degree C Which selection does NOT describe chromatids: a. RNA b. The two replicates of a chromosome joined at their centromeres c. Telomeres d. Short or "p" arm e. Long or "q" arm 38. What distinguishes satellite DNAs from the bulk of the genome? a. They (satellite DNA) contain more of the amino acid, cysteine. b. The base sequence composition of satellite DNA is repeated at a higher level compared to the bulk of the genome. c. Satellite DNAs are best characterized as coding for the most proteins. d. Satellite DNA are part of the sliceosome. e. Satellite DNAs are not found on chromosomes but are separate pieces of DNA that circle around the nucleus. Moderately repeated sequences are known to code for: a. IRNAs b. mRNAs c. rRNAs d. lipids e. polysaccharides Which is NOT associated with the cross-over process: a. Holliday junction b. Polyploidy c. Chromatids d. DNA e. Topoisomerase What process produces gene duplication? a. translation b. cut & paste transposons c. translocation d. equal crossing over e unequal crossing over Gene linkage a. All the alleles that make-up an organisms genome b. The trait(s) or characteristic(s) that result from the alleles c. The most common genotype(s) in a population d. The introns that hold exons together e. The set of genes found near one another on the same, physical chromosome Which selection best describes this genetic annotation: A^x/y, B^k/p? a. Dominance b. Codominance c. Wild-type d. Genotype e. Phenotype
Explanation / Answer
At a wavelength of 260nm single stranded DNA absorbed more light compared to double stranded DNA.
RNA does not describe the chromatids.
B) The base sequence composition of satellite DNA's is repeated at a higher level compared to the bulk of genome.
Moderately repeated sequences are known to code for rRNAs . Option c is correct.
Polyploidy is not associated with the cross-over process.
Gene duplication process produces unequal crossing over.
Gene linkage is the set of genes found near one another on the same, physical chromosome.
43. D) Genotype is correct
