Question

In: Biology

1.The RB alleles are defined as: RB = Wildtype and rb = loss of function. A...

1.The RB alleles are defined as: RB = Wildtype and rb = loss of function.

A retinal cell with the genotype RB/rb will display the retinoblastoma phenotype.

True

False

2.Retinal cells with the genotype RB/RB will show _______________ growth, while retinal cells with the genotype rb/rb will show _______________ growth.

group answers

a.controlled; controlled

b.uncontrolled; controlled

c.controlled; uncontrolled

d.uncontrolled; uncontrolled

3.What will happen to a cell with oncogenic Ras?

Group of answer choices

a.The cell cycle will slow down, and it will take longer for the cell to divide.

b.It will progress through the cell cycle normally.

c.It will stop the cell cycle and undergo senescence.

d.It will experience uncontrolled growth

4.True or False. You have extracted DNA from an organism. Next-Gen sequencing is technique that will allow you to determine the sequences of all the genes being expressed in that organism at the time of extraction.

True

False

Solutions

Expert Solution

1. The answer is False

RB gene is a tumor suppressor gene. The mutation in the RB gene causes retinoblastoma. The two copies of the mutated gene are required to exhibit the retinoblastoma phenotype. The individuals with genotype RB/Rb are carriers. They do not exhibit the phenotype. Retinal cells with genotype RB/rb will not exhibit the diseases. But have a high risk of causing cancer. The individuals with the genotype RB/rb transfers the mutated allele to their children.

The correct option is C - controlled; uncontrolled

RB is a tumor suppressor gene. Tumor suppressor genes, in its normal state, check cell division. But when a mutation occurs on a tumor suppressor gene, it becomes inactivated and abnormal and results in uncontrolled cell division. Retinal cells with two copies of the normal RB gene (RB/RB) will show controlled growth. And retinal cells with two copies of the mutated gene (rb/rb) will show uncontrolled growth

Hence, the correct option - C

The correct option is d - It will experience uncontrolled growth

Oncogenes are mutated proto-oncogenes Oncogenes promote uncontrolled and abnormal cell division and cause cancer. Oncogenic Ras promotes uncontrolled cell division. So a cell with oncogenic Ras will experience uncontrolled growth

hence, the correct option is d

4. The answer is False

New-gen sequencing is the new generation DNA sequencing that helps to determine a large number of the nucleotide sequence of the DNA at a time. After the extraction of DNA, the DNA has to be isolated and purified to apply the New-gen sequencing technology

gladiator answered 1 year ago

Next > < Previous

Related Solutions

1. Genichi Taguchi defined the taguchi loss Function: Explain what the Taguchi Loss Function means for...

1. Genichi Taguchi defined the taguchi loss Function: Explain what the Taguchi Loss Function means for both the consumer and Manufacturer 2. Boothroyd Dewhurst Manual Assembly: What do alpha a beta define? 3. Draw a FAST diagram for a manual toothbrush. 4. Assuming you have your favorite coffee beans ground and you have a coffee type drip coffee maker. List the steps and draw a Process Flow Diagram for brewing a pot of coffee.

The following sequences show the wildtype and mutant alleles of part of a gene. What is...

The following sequences show the wildtype and mutant alleles of part of a gene. What is the name of this type of mutation? Wildtype DNA: 5’ AAC – AGC – CTG – CGT – ACG – GCT – CTC 3’ Wildtype protein: Asn – Ser – Leu – Arg – Thr – Ala – Leu Mutant DNA: 5’ AAC – AGC – CTG – CTT – ACG – GCT – CTC 3’ Mutant protein: Asn – Ser –...

The ability to replace the wildtype alleles with a knockout allele in mice has enabled researchers...

The ability to replace the wildtype alleles with a knockout allele in mice has enabled researchers to carry out important reverse genetics studies on gene function. Please select all of the statements below which correctly describe the creation of gene knockout mice. Multiple answers are possible, and partial credit will be given. A. Illegitimate recombinants have the knockout allele randomly inserted and do not replace the wildtype alleles and may potentially insert into other genes and confound the analysis. B....

Prove that the function defined to be 1 on the Cantor set and 0 on the...

Prove that the function defined to be 1 on the Cantor set and 0 on the complement of the Cantor set is discontinuous at each point of the Cantor set and continuous at every point of the complement of the Cantor set.

1. "Give an example of a function that is defined on the set of integers that...

1. "Give an example of a function that is defined on the set of integers that is not a one-to-one function." Keep in mind that the above domain must be the set of integers. Identify what your codomain is, too. 2. "Give an example of a function that is defined on the set of rational numbers that is not an onto function." The above domain must be the set of rational numbers. Identify what your codomain is, too. This is...

1. You are given the graph of a function f defined on the interval (−1, ∞)....

1. You are given the graph of a function f defined on the interval (−1, ∞). Find the absolute maximum and absolute minimum values of f (if they exist) and where they are attained. (If an answer does not exist, enter DNE.) The x y-coordinate plane is given. A curve, a horizontal dashed line, and a vertical dashed line are graphed. A vertical dashed line crosses the x-axis at x = −1. A horizontal dashed line crosses the y-axis at...

This is for C++ A static main() function defined in your homework assignments means: 1.The function...

This is for C++ A static main() function defined in your homework assignments means: 1.The function is always invisible to all functions outside of the class. 2.The function cannot declare any variables. 3.The function can be called without an instance. 4.The function can access all variables and methods. 5.The function can be called by the superclass.

A. Explain briefly why loss-of-function hedgehog and smoothened mutations yield the same phenotype but a loss-of-function...

A. Explain briefly why loss-of-function hedgehog and smoothened mutations yield the same phenotype but a loss-of-function patched mutation yields the opposite phenotype in flies. B. Ski and SnoN were originally identified as oncoproteins. Explain how the constitutive expression of these proteins is cancer-promoting.

1. you are evaluating autosomal recessive condition A (alleles A and a) and B (alleles B...

1. you are evaluating autosomal recessive condition A (alleles A and a) and B (alleles B and b) which you hypothesize are on different chromosomes. You are given 7 wildtype (homozygous dominant) female flies and 7 male flies that are homozygous recessive. What genotypic ratio would you expect in the F1 generation produced? 2. you mate the F1 females with males that are homozygous recessive for both disease A and B to produce an F2 generation. What phenotypic ratio would...

Let f be the periodic function defined by f(x) = 1 + x|x|, −1 < x...

Let f be the periodic function defined by f(x) = 1 + x|x|, −1 < x < 1, and f(x) = f(x + 2). Find the Fourier series of f.

Subjects