SFSU Bio 230 Final Q&A

If a silk protein gene from a side is attached to a mammary gland promoter and inserted into the first cell of a goat embryo, which is correct? - Answer- the silk protein will be produced in only the mammary cell in the adult goat Order from smallest to largest: nucleotide gene, exon, skin cell, and genome - Answer- nucleotide, exon, gene, genome, and skin cell approximately what percentage of cancer causing mutations are newly acquired - Answer- 90% If a mutagen reacts with DNA in a cell to form a single DNA, after two cell divisions, how many of their daughter cells are likely to have DNA adduct? - Answer- 1 Most accurate about DNA replication and transcription/translation (central dogma)? - Answer- DNA replication occurs in some cells, while transcription/translation happens in all cells If cell divine via mitosis is like a copy machine, which phase of the cell cycle carry out the "copy" and "collate" function? - Answer- S & M phase a slot machine has 10 slots. Each slot has 4 fruits on the spinner (apple, pear, grape, cherry). According to law of segregation what are the odds of getting cherry? - Answer- 1/4 which is true for recessive alleles? - Answer- they produce non-functional proteins or no proteins at all horizontal & vertical stripes are controlled by the same genes. Vertical = dominant (H) and horizontal = recessive (h). What is the genotype of the parent fish with vertical stripes? - Answer- Hh Mendel's pea plants have purple flowers (dominant A) or white flowers (recessive a). If a pea plant has white flowers its genotype is? - Answer- can only be aa Rabbits of opposite sex- both homozygous- 1 brown & 1 white; how do you find out the dominant color? - Answer- mate them together and see what color the offsprings are 23 chromosomes - each homologous pair is from 1 mom and 1 dad. what are the chances you will get dads? - Answer- 1/4^23