Observed segregating alleles a1 (dominant) and a2 (recessive) at the duffy locus in a human population result in the following numbers of different genotypes: a1a1= 15 a1a2= 38 a2a2= 67 observed segregating alleles b1 (dominant) and b2 (recessive) at the hbb locus in the same human population result in the following numbers of different genotypes: b1b1= 67 b1b2= 38 b2b2= 15 consider the following gene pool that is characterized at two loci (duffy and hbb), each with two alleles (a1 and a2 at one locus, b1 and b2 at the second locus): gametes a1b1, a2b1, a1b2, and a2b2 have the following expected gamete frequencies: 0.6, 0.1, 0.08 and 0.22, respectively. using the above information, calculate the d statistic for all of the ab allele combinations ( show your work) (10 p

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'

answerbacterium;

oxygen is the first element in group 16 (via) of the periodic table. the periodic table is a chart that shows how chemical elements are related to each other. the elements in group 16 are said to belong to the chalcogen family. other elements in this group include  sulfur, selenium, tellurium,  and  polonium.  the name chalcogen comes from the greek word  chalkos,  meaning "ore." the first two members of the family, oxygen and sulfur, are found in most ores.

oxygen is by far the most abundant element in the earth's crust. nearly half of all the atoms in the earth are oxygen atoms. oxygen also makes up about one-fifth of the earth's atmosphere. nearly 90 percent of the weight of the oceans is due to oxygen. in addition, oxygen is thought to be the third most abundant element in the universe and in the solar system.