We humans have a gene that, if enabled, would result in us growing a tail. Yet we do not grow tails. This is because .. O nobody knows O a regulatory component of the DNA turns it off O it is a recessive allele O the environment prevents it

A researcher is interested in a gene found on human chromosome21. Describe the expected results of a FISH experiment using aprobe that is complementary to this gene. How many spots wouldyou see if the probe was used on a sample from an individual with46 chromosomes versus an individual with Down syndrome?

A human with an XY chromosome pair appears female. What might explain this person's condition? O This person has an extra copy of the SRY gene. O This person suffers from Turner syndrome. O This person has a mutated SRY gene. O This person suffers from Angelmansyndrome. O The XY determination was an error because it is impossible for a human XY individual to be female.

Paris has her mother's brown hair and her father's blue eyes. Paris inherited these traits from her parents. The information for traits such as hair and eye color are stored in the-- chromosomes located within the genes O cytoplasm located inside the gene O genes located within the chromosomes O nucleus inside the genes

he chances of an individual having a particular group of variable number tandem repeats (VNTRs) can be calculated. If 3 VNTRs are analyzed, one of which has 40 known variations while the other 2 have thirty known variations each, what is the chance of an individual having any specific banding pattern? a 36,000 b 100 c 1/100 d 1/36,000

...... doesn't need during vitro transcription  dna template s dNTPs rns polymerase  all  none

When DNA sequence from a diploid individaul is of a 1,000 nucleotide region. FInd the # of pairwaise differences you can expect between the 2 of these alleles (maternal and paternal)

1. In a plant species, flower-colour is determined by the biochemical pathway shown below: E A D Colourless blue yellow purple red Genes A, B, C, D, and E are independently assorting. The dominant alleles A, B, C and D encode enzymes that catalyse the corresponding reactions indicated above. The recessive alleles a, b, c and d are non-functional and do not produce active enzymes. The dominant E allele totally inhibits the action of gene C, while the recessive allele e has no effect. a) Determine the F1 and F2 phenotypes from a cross between AAbbCCDDEE and AABBCCDDee plants. b) What proportion of the offspring of an AaBBCCDdEe x AaBBCcDdEe cross is expected to have coloured flowers?