A base deletion occurs in the regulator gene of the LAC operon. Describe how the operation of the LAC operon might be affected?818
A single base exchange mutation occurs in the promoter of the TRP operon. How the operation of the HIS operon might be affected in two ways?1087
You want to select a bacterium that has obtained a genetic marker conferring resistance to tetracycline. How would you accomplish this?1 1238
How restriction enzymes,DNA probes are used in genetic engineering?1 1658
What is the difference betwee bacteriostatic and bacteriocidal?2 2476
How many chromosomes would normally be found in a human stomach cell?5 18990
what is the pairing rule for deoxyribonucleic acid?2 1806
If a fly has a diploid number of 12, how many chromosomes would there be in each cell at the end of telophase of mitosis?3 6293
Flower position, stem length, and seed shape were three traits that were studied by Mendel. Each is controlled by an independently assorting gene. If a plant that is heterozygous for all three traits was allowed to self- fertilize, what proportion of the offspring would be expected to show all three dominant phenotypes?2744
was math a subject in high school of difficulty for a person diagnosed with turner's syndrome?
Does unwinding DNA cause aging?
The ABO blood system has been employed to settle cases of disputed paternity. Suppose, as an expert in genetics, you are called to testify in a case where the mother is type A, the child is type O and the alleged father is type B. How would you respond to the following statements of the attornies: a. "Since the mother has type A, the type O of the child must have come from the father and since my client is type B, he obviously could not have fatered the child." Made by the attorney of the alleged father. b. "Further tests revealed that this man is heterozygous and therefore he must be the father." Made by the mother's attorney.
Consider two linked autosomal genes. The dominant allele C of the first gene causes cataracts of the eye, whereas its recessive allele produces normal eyes. The dominant allele P causes polydactyly (an extra finger) whereas its allele (p) produces a normal number of fingers. A man with cataracts and normal fingers marries a woman with polydactyly and normal eyes. Their son has both polydactyly and cataracts and he marries a woman with neither trait. What is the probability that their first child will have cataracts and polydactyly?
our hair comes from our mother's father.Is it true or not?
bakit magkakaiba ng mukha ang tao
What are the 8 steps that are involved in genetic engineering?
What is the function of BCSP31gene of Brucella organism?
what is the role of Beta-lactamase in Gene Cloning ?
A number of plant species have a recessive allele for albinism; homozygous albino (white) individuals are unable to synthesize chlorophyll. If a tobacco plant heterozygous for albinism is allowed to self-pollinate and 500 seeds germinate: a)how many offspring will be the same genotype as the parent? b)how many seedlings would you expect to be white?
Flower position, stem length, and seed shape were three traits that were studied by Mendel. Each is controlled by an independently assorting gene. If a plant that is heterozygous for all three traits was allowed to self- fertilize, what proportion of the offspring would be expected to show all three dominant phenotypes?
A single base exchange mutation occurs in the promoter of the TRP operon. How the operation of the HIS operon might be affected in two ways?
In sesame, the one-pod condition (P) is dominant to the three-pod condition (p), and normal leaf (L) is dominant over wrinkled leaf (l). The two characters are inherited independently. Determine the genotypes and phenotypes of the two plants which produce the following progeny: 318 one- pod normal, 98 one-pod wrinkled, 323 three-pod normal and 104 three-pod wrinkled.
To how much extent skin color depends on genes?
How can all organisms share the same 4 bases DNA and still be so diverse?