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4. At the molecular level, how does a parental cell"pass down" its expression pattern in terms...
1) What is the molecular basis of dominant and recessive alleles (for complete dominance; ignore incomplete...
1) What is the molecular basis of dominant and recessive alleles (for complete dominance; ignore incomplete dominance, epistasis, etc.)? To answer this question, consider the following: a) If alleles are copies of the same gene, why are two types of alleles? What differentiates a dominant allele from a recessive allele (at the molecular level)? Be specific (base pairs, transcription/translation method, protein produced, etc.) b) Why is the phenotype determined by the dominant allele in heterozygous genotype? Be specific. c) What...
2. In your own words, what does 'negative autoregulation' mean? what is the typical outcome of...
2. In your own words, what does 'negative autoregulation'
mean?
what is the typical outcome of negative autoregulation in terms
of level of expression of the gene?
3. in your own words, why are many mutations that disable a gene
recessive?
4. in E. coli, for each of the following genotypes, do
we expect lactase production or not under the following conditions?
(see image attached for rest of question)
2. In your own words, what does 'negative autoregulation' mean? What...
10:54 lLTE Notes October 6, 2019 at 10:49 PM 1. How many chromosomes are found in...
10:54 lLTE Notes October 6, 2019 at 10:49 PM 1. How many chromosomes are found in a homologous pair? (.5 pt) 2. How many chromatids are found in a homologous pair? (.5 pt) 3. During what part of the cell cycle are G1 and G2 found? (.5 pt) 4. How many chromosomes are found in a human body cell? (.5 pt) 5. Do all organisms have the same number of chromosomes? (.5 pt) 6. If a cell has 16 pairs...
Replication Questions: Why might a cell need to replicate all of its chromosomal DNA? . Please...
Replication Questions: Why might a cell need to replicate all of its chromosomal DNA? . Please refer to your DNA replication diagram. After one round of replication, how much of each DNA daughter molecule is composed of the original parental DNA? 3. Please refer to your DNA replication diagram. After two rounds of replication, how much of each granddaughter molecule is composed of the original parental DNA? LAB REPORT 4. Refer to your answers to the above two questions to...
can someone please help me with this ? Practice Using a Punnett Square. Punnett Squares are...
can someone please help me with this ?
Practice Using a Punnett Square. Punnett Squares are tools to identify outcomes known genotypes. They can be used to help infer probabilities of genotypes and from a particular cross. of possible crosses between individuals of phenotypes amongst offspring lele forms "A" and "a". A woman is heterozygous, so she can produce eggs with Consider a gene with all 9. and Write them across the top of the Punnett Square below the following...
Name: PRELAB QUESTIONS 1. Define the following terms: Gene- Allele - Phenotype- Genotype- Homozygous dominant -...
Name: PRELAB QUESTIONS 1. Define the following terms: Gene- Allele - Phenotype- Genotype- Homozygous dominant - Homozygous recessive- Heterozygous- 2. Put into your own words Mendel's law of segregation. LI Does the law of segregation always apply when dealing with genes located on chromosomes within a diploid nucleus? If not, explain why. 3. Mendel worked with several pea plant characters, each of which was determined by a single gene with two alleles, one dominant and the other recessive. For each...
Assume that tail length in mice is a quantitative trait involving two genes, each with 2...
Assume that tail length in mice is a quantitative trait involving two genes, each with 2 alleles. One allele at each gene contributes to long tails, the other allele at each gene does not (small tails). The genes are located on different autosomes. Mice with 0 contributing alleles have tails that are 4 cm in length; mice with tails with 4 contributing alleles are 12 cm in length. Determine the phenotypic ratio from an F2 from a true breeding parent...
How does the structure and properties of an organic molecular impact its function for a cell...
How does the structure and properties of an organic molecular impact its function for a cell or tissue? (consider different types of lipids and amino acids/protein structure). Explain five examples.
Match the following terms with the appropriate description below: a. alleles b. autosomes c. dominant allele...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
3. (2 points) In the nematode roundworm, Caenorhabditis elegans, the LIN-14 protein controls the timing of...
3. (2 points) In the nematode roundworm, Caenorhabditis elegans, the LIN-14 protein controls the timing of certain cell divisions during development. LIN-14 protein levels are normally high in early development but decrease in the later stages. In a lin-4 mutant, the level of LIN-14 protein stays high throughout development, changing the pattern of cell divisions in the animal and producing defects in the shape of the animal. The lin-4 gene encodes a microRNA that binds to a sequence in the...
2. In your own words, what does 'negative autoregulation'
mean?
what is the typical outcome of negative autoregulation in terms
of level of expression of the gene?
3. in your own words, why are many mutations that disable a gene
recessive?
4. in E. coli, for each of the following genotypes, do
we expect lactase production or not under the following conditions?
(see image attached for rest of question)
2. In your own words, what does 'negative autoregulation' mean? What...
10:54 lLTE Notes October 6, 2019 at 10:49 PM 1. How many chromosomes are found in a homologous pair? (.5 pt) 2. How many chromatids are found in a homologous pair? (.5 pt) 3. During what part of the cell cycle are G1 and G2 found? (.5 pt) 4. How many chromosomes are found in a human body cell? (.5 pt) 5. Do all organisms have the same number of chromosomes? (.5 pt) 6. If a cell has 16 pairs...
Replication Questions: Why might a cell need to replicate all of its chromosomal DNA? . Please refer to your DNA replication diagram. After one round of replication, how much of each DNA daughter molecule is composed of the original parental DNA? 3. Please refer to your DNA replication diagram. After two rounds of replication, how much of each granddaughter molecule is composed of the original parental DNA? LAB REPORT 4. Refer to your answers to the above two questions to...
can someone please help me with this ?
Practice Using a Punnett Square. Punnett Squares are tools to identify outcomes known genotypes. They can be used to help infer probabilities of genotypes and from a particular cross. of possible crosses between individuals of phenotypes amongst offspring lele forms "A" and "a". A woman is heterozygous, so she can produce eggs with Consider a gene with all 9. and Write them across the top of the Punnett Square below the following...
Name: PRELAB QUESTIONS 1. Define the following terms: Gene- Allele - Phenotype- Genotype- Homozygous dominant - Homozygous recessive- Heterozygous- 2. Put into your own words Mendel's law of segregation. LI Does the law of segregation always apply when dealing with genes located on chromosomes within a diploid nucleus? If not, explain why. 3. Mendel worked with several pea plant characters, each of which was determined by a single gene with two alleles, one dominant and the other recessive. For each...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
3. (2 points) In the nematode roundworm, Caenorhabditis elegans, the LIN-14 protein controls the timing of certain cell divisions during development. LIN-14 protein levels are normally high in early development but decrease in the later stages. In a lin-4 mutant, the level of LIN-14 protein stays high throughout development, changing the pattern of cell divisions in the animal and producing defects in the shape of the animal. The lin-4 gene encodes a microRNA that binds to a sequence in the...
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