1) Option 5 is the answer.
2) Option 1 is the answer.
3)Option 5 is the answer.
All the given statements are correct.
4) Option 4 is the answer.
Given 1 and 2 statements are correct.
6)Option 3 is the answer.
PolyApolymerase is needed.
7)Option 5 is the answer.
Given 1 and 2 statements are correct.
8)Option 2 is the answer.
Given 3rd statement is true.There is no masking of recessive allele by dominant allele.Both produces proteins.But,protein produced by dominant allele contributes more for the phenotype.
Why would changes in the genes for transcription factors be expected to generate major phenotypic differences?...
28 29 30 31 32 33 28. Genes found in segments of chromosome called heterochromatin would likely be expressed at high levels. expressed at low levels, or not at all. deleted before replication. maternally inherited only. none of these 29. (Use this representation to answer the following question.) DNA template strand 5 3' DNA complementary strand 3' 5' Using the double-stranded molecule above, in which direction does the RNA polymerase enzyme move? 3' → 5' along the template strand 5'...
1.Certain characteristics, like coat color in many animals, is influenced by multiple genes. The phenomenon during which the presence of a homozygous recessive genotype at one locus "overrides" or masks the phenotype that would otherwise be produced by the alleles at another locus (regardless of whether they are dominant or recessive) is called: pleiotropy codominance Punnett effect recessive Epistasis 2. Which of the following would be considered a pleiotropic gene? A gene that-along with several others-influences a single phenotype, such...
You have three genes on the same chromosome - A, B and C. Each gene has two alleles in a dominant/recessive relationship. For these genes the homozygous recessive has the mutant phenotype for that trait, the dominant phenotype = wild type for that trait. allele A is dominant to a; phenotype a = mutant for trait a; phenotype A = wild type for trait A allele B is dominant to b; phenotype b = mutant for trait b; phenotype B...
If the two genes are unlinked, an organism with the genotype of AaBb can produce gametes containing either Aa or Bb. AB, Ab, aB, or ab. AaBb. AB or ab. none of the abov Which of the following is NOT correct about miRNA? It is involved with posttranscriptional regulation in eukaryotes. It leads to one type of RNA interference. Its name is derived from “mitochondrial RNA.” It binds to a complementary mRNA sequence. It is found in many different organisms,...
QUESTION 3 A test cross is set up to establish the genotype of a plant with rounded peas. It is crossed with a plant that is homozygous for wrinkled peas. A round pea shape is dominant over the wrinkled shape. The offspring derived in the test cross exhibit a 50:50 ratio of wrinkled and round peas. What is the genotype of the parent in question? Homozygous for round pea shape. Heterozygous for pea shape. Homozygous for wrinkled pea shape. Heterozygous...
O) The role of the 23S TRNA of the large ribosomal subunit of E. coli during protein synthesis is: a. aid in initiation of protein synthesis b. contributes to the process of translocation during the elongation stage of protein synthesis c. helps to form the A site within the ribosome d. actively forms a peptide bond e. none of the above P) Spontaneous mutations can be caused by: a. incorrect translation b. telomerase c. chemical mutagens d. tautomeric shifts e....
QUESTION 1 George Beadle and Edward Tatum performed an experiment in which they made single-gene mutations in the bread mold Neurospora crassa. These mutations resulted in several Neurospora auxotrophs. Further analysis revealed specifically how the mutations affected synthesis of the amino acid in question. What was the significance of these results? A single gene encodes a single protein, in the case of this experiment, an enzyme. Enzymes are needed to synthesize amino acids. They showed that mutations are heritable. They...
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...
for 1-5 define those The Lac operon is an inducible set of genes found in bacteria cells that helps the bacteria to metabolize the disaccharide lactose. When it is turned on it produces proteins that pump lactose into the bacteria cell and break it down into glucose and galactose, which can then be used by the bacteria as a source of energy The two figures below show the Lac Operon along with the lacl gene (which regulates the Lac operon...
1) Select the true statements about dominant and recessive genes, assuming complete penetrance of the genotype. Circle all that apply. (1.5) For an offspring to be phenotypically dominant for a trait, at least one parent will show the trait. For an offspring to be phenotypically recessive for a trait, at least one parent will show the trait. In incomplete dominant or codominant traits, heterozygotes will have a different phenotype than either homozygote. If both parents show a recessive trait, then...