A genetic screening to identify the phyC –deficient mutants and the type of phenotypes examined for this screening. Given: It is given in the experiment that the plants in which the gene for phy C was overexpressed shows an increase in the leaf area relative to the wild type. Table: Phtochromes phyA, phyB, phyC, and phyD were separately overexpressed in Arabidopsis , and 18-day-old seedlings were examined with regard to leaf area. Gene expression Leaf area (mm 2 ) Wild-type 22 phyA overexpressed 21 phyB overexpressed 21 phyC overexpressed 31 phyD overexpressed 22 Introduction: The genetic screen is an important technique that can be used to identify certain genes involved in a particular function. It is an experimental technique in which individuals that possess a certain type of phenotype are identified from a mutagenized population. Genetic screens are helpful in studying functions of genes of interest.

Question

Want to see the full answer?

Answer 1

Question

Chapter 36, Problem 2Q

Summary Introduction

To review:

A genetic screening to identify the phyC –deficient mutants and the type of phenotypes examined for this screening.

Given:

It is given in the experiment that the plants in which the gene for phy C was overexpressed shows an increase in the leaf area relative to the wild type.

Table: Phtochromes phyA, phyB, phyC, and phyD were separately overexpressed in Arabidopsis, and 18-day-old seedlings were examined with regard to leaf area.

Gene expression Leaf area (mm²)

Wild-type 22

phyA overexpressed 21

phyB overexpressed 21

phyC overexpressed 31

phyD overexpressed 22

Introduction:

The genetic screen is an important technique that can be used to identify certain genes involved in a particular function. It is an experimental technique in which individuals that possess a certain type of phenotype are identified from a mutagenized population. Genetic screens are helpful in studying functions of genes of interest.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

The Snapdragon is a popular garden flower that comes in a variety of colours, including red, yellow, and orange. The genotypes and associated phenotypes for some of these flowers are as follows: aabb: yellow AABB, AABb, AaBb, and AaBB: red AAbb and Aabb: orange aaBB: yellow aaBb: ? Based on this information, what would the phenotype of a Snapdragon with the genotype aaBb be and why? Question 21 options: orange because A is epistatic to B yellow because A is epistatic to B red because B is epistatic to A orange because B is epistatic to A red because A is epistatic to B yellow because B is epistatic to A

A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.