Sem 1 Revision Chem and Biol File
... 1. Define the following terminologies: Meiosis: a type of cell division occurring in gonads only. Mitosis: a type of cell division that occur in all body tissues. Phenotype: the physical expression of a gene/allele. Genotype: the genetic code of a gene/allele. Punnet square: a tool used to determine ...
... 1. Define the following terminologies: Meiosis: a type of cell division occurring in gonads only. Mitosis: a type of cell division that occur in all body tissues. Phenotype: the physical expression of a gene/allele. Genotype: the genetic code of a gene/allele. Punnet square: a tool used to determine ...
Genetics Supplement
... Mother molecule. Each DNA molecule is contained in a Meiosis ↓ chromosome. You will see that we can understand egg how a baby inherits genes from his or her mother and father by understanding how the genecarrying chromosomes move during meiosis to form gametes and fertilization to form the zygote th ...
... Mother molecule. Each DNA molecule is contained in a Meiosis ↓ chromosome. You will see that we can understand egg how a baby inherits genes from his or her mother and father by understanding how the genecarrying chromosomes move during meiosis to form gametes and fertilization to form the zygote th ...
Regulation and mutation
... and repressors (rare in eukaryotes) RNA processing: different exons may be used within one gene, producing different protein products mRNA longevity: mRNA translates as long as it is intact ‘lifespan’ encoded in the 3' UTR sequence AUUUA signals early degradation translation: ...
... and repressors (rare in eukaryotes) RNA processing: different exons may be used within one gene, producing different protein products mRNA longevity: mRNA translates as long as it is intact ‘lifespan’ encoded in the 3' UTR sequence AUUUA signals early degradation translation: ...
Eukaryotic Transcription
... and small, stable RNAs – RNA polymerase II: synthesis of mRNAs and four small nuclear RNAs that take part in RNA splicing ...
... and small, stable RNAs – RNA polymerase II: synthesis of mRNAs and four small nuclear RNAs that take part in RNA splicing ...
• Will a base pair substitution, addition or deletion cause a
... BRCA1 gene plays a role in the repair of double-stranded breaks in DNA About 5% of breast cancer cases are caused by an inherited susceptibility allele. A mutation in a gene called BRCA1 is thought to account for approximately 80% of families with a high incidence of both early-onset breast and ovar ...
... BRCA1 gene plays a role in the repair of double-stranded breaks in DNA About 5% of breast cancer cases are caused by an inherited susceptibility allele. A mutation in a gene called BRCA1 is thought to account for approximately 80% of families with a high incidence of both early-onset breast and ovar ...
G.tigrina Hox
... 3) Remove internal restriction sites (EcoRI) using site-directed mutagenesis. Two of the three sites are only 18 base pairs apart and will be removed with two nucleotide adjustments on one primer. Thus the gene will be fragmented into three segments, each of which must be amplified via PCR. 4) The t ...
... 3) Remove internal restriction sites (EcoRI) using site-directed mutagenesis. Two of the three sites are only 18 base pairs apart and will be removed with two nucleotide adjustments on one primer. Thus the gene will be fragmented into three segments, each of which must be amplified via PCR. 4) The t ...
Antibody Structure
... • Found out that although mice were genetically identical, the IgG samples from the mice were not. • After sequencing, found that variations lay in specific area. • Hood suggested that 2 genes encode for a single polypeptide chain giving rise to a variable and constant region • Notice that there is ...
... • Found out that although mice were genetically identical, the IgG samples from the mice were not. • After sequencing, found that variations lay in specific area. • Hood suggested that 2 genes encode for a single polypeptide chain giving rise to a variable and constant region • Notice that there is ...
100 colorectal adenomatous polyps
... have a significant impact on both the patients’ short- and long-term medical management. [include as appropriate] According to the American Gastroenterological Association Medical Position Statement, APC gene testing is “the screening test of choice” and is indicated for “those 10 years or older at ...
... have a significant impact on both the patients’ short- and long-term medical management. [include as appropriate] According to the American Gastroenterological Association Medical Position Statement, APC gene testing is “the screening test of choice” and is indicated for “those 10 years or older at ...
Cancer and genomics
... is exposed to mutagens and suffers mistakes in replication, resulting in progressive, subtle changes in the DNA sequence in each cell. Occasionally, one of these somatic mutations alters the function of a critical gene, providing a growth advantage to the cell in which it has occurred and resulting ...
... is exposed to mutagens and suffers mistakes in replication, resulting in progressive, subtle changes in the DNA sequence in each cell. Occasionally, one of these somatic mutations alters the function of a critical gene, providing a growth advantage to the cell in which it has occurred and resulting ...
Human Behavior
... phobias about spiders and snakes than guns and electricity? Why are men quicker to perceive friendliness as sexual interest? ...
... phobias about spiders and snakes than guns and electricity? Why are men quicker to perceive friendliness as sexual interest? ...
279 - aaabg
... Differential Gene Expression Analyses. Microarray data were processed using Affymetrix® Microarray Suite (MAS 5.0) software during normalisation and making detection calls. After editing based on ‘Absent or Marginal’ detection calls, there were 16936 transcripts for further analyses. All statistical ...
... Differential Gene Expression Analyses. Microarray data were processed using Affymetrix® Microarray Suite (MAS 5.0) software during normalisation and making detection calls. After editing based on ‘Absent or Marginal’ detection calls, there were 16936 transcripts for further analyses. All statistical ...
Population Genetics
... • Change in DNA’s nucleotide sequence. • Raw source for new genes and alleles • Most mutations are somatic cell mutations and do not affect offspring • Only gametic mutations affect a gene pool. • Mutation rates – Lower in organisms with a longer generation span • Plants and animals – 1/100000 genes ...
... • Change in DNA’s nucleotide sequence. • Raw source for new genes and alleles • Most mutations are somatic cell mutations and do not affect offspring • Only gametic mutations affect a gene pool. • Mutation rates – Lower in organisms with a longer generation span • Plants and animals – 1/100000 genes ...
SECTION D What Does DNA Do?
... letters of the English alphabet. Likewise, the genetic code is a list indicating which mRNA nucleotide triplets (or codons) stand for which amino acids (as shown in the table on S52). Just as the breaking of the Enigma Code during World War II required large numbers of people working for several yea ...
... letters of the English alphabet. Likewise, the genetic code is a list indicating which mRNA nucleotide triplets (or codons) stand for which amino acids (as shown in the table on S52). Just as the breaking of the Enigma Code during World War II required large numbers of people working for several yea ...
linkage-recomb2
... In the early 1900s it was noticed that the 9:3:3:1 ratio from a dihybrid cross did not always occur. In some F2 generations the parental phenotypes appeared more frequently than expected. Sometimes recombinant phenotypes did not appear at all. ...
... In the early 1900s it was noticed that the 9:3:3:1 ratio from a dihybrid cross did not always occur. In some F2 generations the parental phenotypes appeared more frequently than expected. Sometimes recombinant phenotypes did not appear at all. ...
1 - CSU, Chico
... 21. In the offspring of two individuals who are both heterozygous for a single trait, what is the phenotype ratio? a. 1:2:1 b. 1:2:1:2:4:2:1:2:1 c. 3:1 d. 9:3:3:1 e. None of the above 22. Nuclear DNA is found in __________. a. The nucleus of the cell b. In chromosomes c. Ribosomes d. A and B e. B an ...
... 21. In the offspring of two individuals who are both heterozygous for a single trait, what is the phenotype ratio? a. 1:2:1 b. 1:2:1:2:4:2:1:2:1 c. 3:1 d. 9:3:3:1 e. None of the above 22. Nuclear DNA is found in __________. a. The nucleus of the cell b. In chromosomes c. Ribosomes d. A and B e. B an ...
1 - Webcourse
... c. Could this trait be inherited as a simple autosomal dominant? d. Could this trait be inherited as a simple X-linked recessive? e. Could this trait be inherited as a simple X-linked dominant? f. Could this trait be inherited as a simple Y-linked trait? Pedigree A ...
... c. Could this trait be inherited as a simple autosomal dominant? d. Could this trait be inherited as a simple X-linked recessive? e. Could this trait be inherited as a simple X-linked dominant? f. Could this trait be inherited as a simple Y-linked trait? Pedigree A ...
mapping within a gene
... • in other words – do gene mutations change the whole gene at a single stroke? • or does a mutation change only a specific part of the gene where the mutation is ...
... • in other words – do gene mutations change the whole gene at a single stroke? • or does a mutation change only a specific part of the gene where the mutation is ...
AP Biology Complex Inheritance Incomplete dominance: Pattern of
... *Brain cells of TaySachs babies lack a crucial lipid metabolizing enzyme. Thus lipids accumulate in the brain,, causing the disease symptoms and ultimately leading to death. * AT the organism level, since heterozygotes are symptom free, it appears that the normal allele is completely dominant a ...
... *Brain cells of TaySachs babies lack a crucial lipid metabolizing enzyme. Thus lipids accumulate in the brain,, causing the disease symptoms and ultimately leading to death. * AT the organism level, since heterozygotes are symptom free, it appears that the normal allele is completely dominant a ...
Unit 2 Homework
... Q18. The figure below shows the life cycle of Plasmodium falciparum, a parasite that causes malaria in humans. The figure also shows stages in its life cycle targeted by two human vaccines, the zygote stage by Pfs25 and the sporozoite stage by RTS,S. Pfs25 is a protein produced by P. falciparum whe ...
... Q18. The figure below shows the life cycle of Plasmodium falciparum, a parasite that causes malaria in humans. The figure also shows stages in its life cycle targeted by two human vaccines, the zygote stage by Pfs25 and the sporozoite stage by RTS,S. Pfs25 is a protein produced by P. falciparum whe ...
PDF
... General features of yeast transcription factors’ binding sites and regulatory elements SCPD enables us to study the general features of yeast transcription factors’ binding sites. Many factors have multiple binding sites in their upstream regions. For the 200 genes (455 non-redundant sites) document ...
... General features of yeast transcription factors’ binding sites and regulatory elements SCPD enables us to study the general features of yeast transcription factors’ binding sites. Many factors have multiple binding sites in their upstream regions. For the 200 genes (455 non-redundant sites) document ...
Unfinished Material - Answer Key
... mRNA, then the polypeptides translated will be different. - So splicing the same primary RNA transcript in different ways will produce different mature mRNAs, and therefore produce different proteins; and this is what is known as alternative splicing. ...
... mRNA, then the polypeptides translated will be different. - So splicing the same primary RNA transcript in different ways will produce different mature mRNAs, and therefore produce different proteins; and this is what is known as alternative splicing. ...
03-131 Genes Drugs and Diseases Problem Set 7 Due November 1, 2015
... ribosome. It was originally isolated from a soil fungus. Its structure is shown on the right. i) What are the typical uses of this antibiotic (please cite your source)? ii) Which steps of protein synthesis could still occur and which would be prevented in the presence of this antibiotic? iii) Why wo ...
... ribosome. It was originally isolated from a soil fungus. Its structure is shown on the right. i) What are the typical uses of this antibiotic (please cite your source)? ii) Which steps of protein synthesis could still occur and which would be prevented in the presence of this antibiotic? iii) Why wo ...
Gene
A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term ""having a gene"" (e.g., ""good genes,"" ""hair colour gene"") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles.The concept of a gene continues to be refined as new phenomena are discovered. For example, regulatory regions of a gene can be far removed from its coding regions, and coding regions can be split into several exons. Some viruses store their genome in RNA instead of DNA and some gene products are functional non-coding RNAs. Therefore, a broad, modern working definition of a gene is any discrete locus of heritable, genomic sequence which affect an organism's traits by being expressed as a functional product or by regulation of gene expression.