1. Be čareful, you only have info on the phenotype. Control by gene A Control by Colorless precursor gene B Colorless intermediate wild type Control by gene A Control by gene B only 50% Colorless intermediate Colorless precursor Hypomorphic lighter allele Control by Control by gene A gene B Colorless precursor Colorless intermediate O a) hypermorphic b) somatic c) neomorphic d) frameshift

1. Be čareful, you only have info on the phenotype. Control by gene A Control by Colorless precursor gene B Colorless intermediate wild type Control by gene A Control by gene B only 50% Colorless intermediate Colorless precursor Hypomorphic lighter allele Control by Control by gene A gene B Colorless precursor Colorless intermediate O a) hypermorphic b) somatic c) neomorphic d) frameshift

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter10: Control Of Gene Expression

Section: Chapter Questions

Problem 4CT: The photos below show flowers from two Arabidopsis plants. The plant on the left is wild-type...

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The amino acid sequence of part of a protein has beendetermined:N . . . Gly Ala Pro Arg Lys . . . CA mutation has been induced in the gene encodingthis protein using the mutagen proflavin. The resultingutant protein can be purified and its amino acidsequence determined. The amino acid sequence of themutant protein is exactly the same as the amino acidsequence of the wild-type protein from the N terminus of the protein to the glycine in the preceding sequence. Starting with this glycine, the sequence ofamino acids is changed to the following:N . . . Gly His Gln Gly Lys . . . CUsing the amino acid sequences, one can determinethe sequence of 14 nucleotides from the wild-typegene encoding this protein. What is this sequence?
Fill up the blank __________s are blood diseases caused by mutationsthat eliminate or reduce the production of globinpolypeptides from one of the clusters but not the other.These mutations can include deletions of specific genesor the LCR in either cluster.
e. four-base, not overlapping4. An example of a portion of the T4 rIIB gene in whichCrick and Brenner had recombined one + and one −mutation is shown here. (The RNA-like strand of theDNA is shown.)wild type 5′ AAA AGT CCA TCA CTT AAT GCC 3′mutant 5′ AAA GTC CAT CAC TTA ATG GCC 3′a. Where are the + and − mutations in the mutant DNA?b. The double mutant produces wild-type plaques.What alterations in amino acids occurred in thisdouble mutant?c. How can you explain the fact that amino acids aredifferent in the double mutant than in the wild-typesequence, yet the phage has a wild-type phenotype?
6_c. In cancerous cells, CpG islands are: where intercalating agents are found demethylated methylated.
. The website CBioPortal (http://www.cbioportal.org)is an exceptionally useful program for visualizing thecancer genes and genomes of tumors from thousandsof patients with different kinds of cancer that havebeen analyzed by whole genome sequencing and insome cases, by RNA-Seq.Go the the CBioPortal site and click All underSelect Cancer Study and in Enter Gene Set typePTEN, then hit Submit. On the page that is returnedyou will see how the coding region of the PTEN geneis altered in tumors investigated in the various studies.Hitting the tab Mutations will let you see the detailsof these mutations relative to the PTEN protein, whilethe tab Expression lets you see how the gene’s expression (in terms of cDNA reads) is altered in individual tumor samples.a. Is PTEN an oncogene or a tumor suppressor gene?What kinds of evidence lead you to this conclusion?b. What kinds of cancer are most likely to involvealterations of PTEN?c. How would you identify patients whose tumorcells are particularly…
Achondroplasia is an autosomal dominant form of dwarfism caused by a single gene mutation. Calculate the mutation rate of this gene given the following data: 10 achondroplastic births to unaffected parents in 245,000 births.
Variations in Phenotype Expression A genetic disorder characterized by falling asleep in genetics lectures is known to be 20% penetrant. All 90 students in a genetics class are homozygous for this gene. Theoretically, how many of the 90 students will fall asleep during the next lecture?
The photos below show flowers from two Arabidopsis plants. The plant on the left is wild-type (unmutated); the other carries a mutation that causes its flowers to have sepals and petals instead of stamens and carpels. The mutation inactivated one of the plant's ABC floral identity genes. Refer to Figure 10.8 and decide which gene (A, B, or C) has been inactivated.
I didnt get answer for this Can you explain in a few sentences how the change in the structure of the gene affects the function of the corn plant?
Differentiate between the elements of the following pairs:a. Transitions and transversionsb. Synonymous and neutral mutationsc. Missense and nonsense mutationsd. Frameshift and nonsense mutations
With this gene provided: MuPKS c.1949 C>T (p.R644W) Please provide the following; 1. Name of the gene 2. Location of the nucleotide change 3. Nucleotides that are changed 4. Type of mutation 5. Amino acid change 6. Location of the amino acid change
Sickle-cell anemia is a recessive autosomal disorderthat is caused by an amino acid substitution in theβ-hemoglobin protein. The DNA mutation underlyingthis substitution is a SNP that alters a GAG codon forthe amino acid glutamate to a GTG that codes a valine.The frequency of sickle-cell anemia among AfricanAmericans is about 1/400. What is the frequency ofthis GTG codon in the β-hemoglobin gene amongAfrican Americans?