I am also weak in Beh. & Genteics - drfuture
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I am also weak in Beh. & Genteics - drfuture
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04-07-2012, 07:59 AM
Q a pateint with hartnup induced pellagra can be treated with?
1. Tryptophane to produce Niacin 2. Niacin only 3. amino acid restriction
04-07-2012, 08:56 AM
Molecular biology 1...Q
#642338 maryam2009 - 12/23/11 19:33 A researcher has designed a study in which she will compare the variability of alleles for two hundred genes on four chromosomes between two populations: two thousand children with low-functioning autism and two thousand children with no developmental or other disorder. Which tool will be the most useful for identifying allele variability? A.Allele-specific oligonucleotide probes B.DNA hybridization chips C.Small interfering RNA D.Restriction fragment length polymorphisms E.Variable number tandem repeats Report Abuse * Re:Molecular biology 1...Q #2550245 luckyluke - 12/23/11 19:40 D Report Abuse * Re:Molecular biology 1...Q #2550251 surela - 12/23/11 19:56 dd Report Abuse * Re:Molecular biology 1...Q #2550254 sarim - 12/23/11 20:03 AA ? Report Abuse * Re:Molecular biology 1...Q #2550256 kindmd - 12/23/11 20:10 EE??? Explain the answer plz.... Report Abuse * Re:Molecular biology 1...Q #2550266 maryam2009 - 12/23/11 20:21 The correct answer is D. Restriction fragment length polymorphisms.RFLP's are useful when a researcher is looking for genetic variabilty Allele-specific oligonucleotide probes (A) is used to identify a particular mutation,, or to count chromosomes. B is used to identify a set of single nucleotide polymorphisms.it’s most commonly used to measure gene expression in certain cells or tissues. siRNAs © would be used to modulate gene expression at the transcriptional/post-transcriptional level. VNTRs (E) are used for DNA fingerprinting Report Abuse * Re:Molecular biology 1...Q #2550267 samideb12 - 12/23/11 20:21 ?? allele specific oligonucleotide probe Report Abuse * Re:Molecular biology 1...Q #2550304 papilio - 12/23/11 21:17 thanks for the great question and explanation Your exam must be near Best of luck God bless you Report Abuse * Re:Molecular biology 1...Q #2550326 maryam2009 - 12/23/11 21:43 You are welcome Still working  Report Abuse
04-07-2012, 12:11 PM
Re:I am also weak in Beh. & Genteics
#2636829 drfuture - 04/07/12 10:41 Q3 a 2 years old female is presented to u by her mother with Mnetal retardation growth failure on exam she is fair skinned blondy which is not the case in both of her parents , lab values show normal phenlalanine hydroxylase level and high prolactin. which of the following substances she is very likely deficient in? a. Ach b. serotonin c. glucose d. ketones patient have Phenyl ketonuria so this patient very likely has BH4 deff or Dihydrobiopterine reductase deff. which is one of the uncommon cause of PKU bcause his phenylalanine hydroxylase level is normal BH4 is a prerequisite for serotonin synthesis from tryptophan Answer B
04-08-2012, 08:29 PM
Q6 A 1 year old mentally retarded patient with several hospital admission with hypoglycemia presents to you with a positive Clinitest but a negative Urine dipstick for sugar? the patient most likely have?
a. Glucosuria b. Hereditary fructose intolreance c. Vongierk disease
04-08-2012, 08:32 PM
Q7 tyrosine is essential in patients with .......??
a. PKU b. DM c. Albinism d. DHB reductase e. B6 deff. f. A + d g. a + e
04-08-2012, 08:55 PM
q8 Cystic Fibrosis is most commonly due to phenylalanine deletion at postion 508 this is similar to ?
a. Duchene b. Becker c. Familial hypercholesterolemia
04-09-2012, 01:05 AM
q8 Cystic Fibrosis is most commonly due to phenylalanine deletion at postion 508 this is similar to ?
a. Duchene b. Becker c. Familial hypercholesterolemia c.due to mutation of gene that encodes the LDL receptor. similar to gene mutation for CFTR receptor.
04-09-2012, 01:12 AM
Q6 A 1 year old mentally retarded patient with several hospital admission with hypoglycemia presents to you with a positive Clinitest but a negative Urine dipstick for sugar? the patient most likely have?
a. Glucosuria b. Hereditary fructose intolreance c. Vongierk disease c. Von gierke disease...has all s/s, .....not sure abt +Clinitest (test for glucose in urine)
04-09-2012, 01:13 AM
Q7 tyrosine is essential in patients with .......??
a. PKU.
04-09-2012, 05:45 AM
insulin deffciciency in patients with DM1
will lead to a state in whicg the body is in a psedohypoglycemia which will stimulate ACTH relese ---. cortisol and Epi. and glucagon to further increase the blood sugar dec. insulin and increased Glucagon -->> phosphorylation of AcetlcoA carboxylase rendering it inactive in FA synthesis so acetyl coA the effect of inc. acteyl coA::: inhibits pyruvate dehase: leading to inc. conversion of pyruvate into the gluconeogenic pathway which is already stimulated by the glucagon( F16Bisphosphatase) further increasing sugar levels the other path acetyl coa will take is into Ketone body synthesis cuz beta oxidation of FAs which is normally inhibtied by MALONYLCOA is absent now cuz no acetycoa carboxylase is functoning cuz of lack of insulin |
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