a. To explain: The differences between the dominant allele P and the recessive allele p of the gene that is responsible for the flower colors. Introduction: Different varieties of the same trait are coded by different alleles of the same gene. Alleles can be present in homozygous (both are same) or in heterozygous (different alleles) condition in a gene.

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Answer 1

Question

Chapter 2, Problem 32P

Summary Introduction

a.

To explain:

The differences between the dominant allele P and the recessive allele p of the gene that is responsible for the flower colors.

Introduction:

Different varieties of the same trait are coded by different alleles of the same gene. Alleles can be present in homozygous (both are same) or in heterozygous (different alleles) condition in a gene.

Summary Introduction

b.

To determine:

Whether some different gene would have been the one that governs Mendel’s flower colors or not based on the given biochemical pathway

Introduction:

Phenotypic expression of a gene is dependent on the types of alleles present in that gene. The homozygous and heterozygous condition causes expression of the dominant allele only, except in the case of co-dominance. Recessive alleles are expressed in homozygous (recessive) conditions only.

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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.

With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin

Answer 2

Question

Chapter 2, Problem 32P

Summary Introduction

a.

To explain:

The differences between the dominant allele P and the recessive allele p of the gene that is responsible for the flower colors.

Introduction:

Different varieties of the same trait are coded by different alleles of the same gene. Alleles can be present in homozygous (both are same) or in heterozygous (different alleles) condition in a gene.

Summary Introduction

b.

To determine:

Whether some different gene would have been the one that governs Mendel’s flower colors or not based on the given biochemical pathway

Introduction:

Phenotypic expression of a gene is dependent on the types of alleles present in that gene. The homozygous and heterozygous condition causes expression of the dominant allele only, except in the case of co-dominance. Recessive alleles are expressed in homozygous (recessive) conditions only.

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Answer 3

Question

Chapter 2, Problem 32P

Summary Introduction

a.

To explain:

The differences between the dominant allele P and the recessive allele p of the gene that is responsible for the flower colors.

Introduction:

Different varieties of the same trait are coded by different alleles of the same gene. Alleles can be present in homozygous (both are same) or in heterozygous (different alleles) condition in a gene.

Summary Introduction

b.

To determine:

Whether some different gene would have been the one that governs Mendel’s flower colors or not based on the given biochemical pathway

Introduction:

Phenotypic expression of a gene is dependent on the types of alleles present in that gene. The homozygous and heterozygous condition causes expression of the dominant allele only, except in the case of co-dominance. Recessive alleles are expressed in homozygous (recessive) conditions only.

Expert Solution & Answer

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Answer 4

Question

Chapter 2, Problem 32P

Summary Introduction

a.

To explain:

The differences between the dominant allele P and the recessive allele p of the gene that is responsible for the flower colors.

Introduction:

Different varieties of the same trait are coded by different alleles of the same gene. Alleles can be present in homozygous (both are same) or in heterozygous (different alleles) condition in a gene.

Summary Introduction

b.

To determine:

Whether some different gene would have been the one that governs Mendel’s flower colors or not based on the given biochemical pathway

Introduction:

Phenotypic expression of a gene is dependent on the types of alleles present in that gene. The homozygous and heterozygous condition causes expression of the dominant allele only, except in the case of co-dominance. Recessive alleles are expressed in homozygous (recessive) conditions only.

Expert Solution & Answer

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Answer 5

Chapter 2, Problem 32P

Summary Introduction

a.

To explain:

The differences between the dominant allele P and the recessive allele p of the gene that is responsible for the flower colors.

Introduction:

Different varieties of the same trait are coded by different alleles of the same gene. Alleles can be present in homozygous (both are same) or in heterozygous (different alleles) condition in a gene.

Summary Introduction

b.

To determine:

Whether some different gene would have been the one that governs Mendel’s flower colors or not based on the given biochemical pathway

Introduction:

Phenotypic expression of a gene is dependent on the types of alleles present in that gene. The homozygous and heterozygous condition causes expression of the dominant allele only, except in the case of co-dominance. Recessive alleles are expressed in homozygous (recessive) conditions only.

Answer 6

Chapter 2, Problem 32P

Summary Introduction

a.

To explain:

The differences between the dominant allele P and the recessive allele p of the gene that is responsible for the flower colors.

Introduction:

Different varieties of the same trait are coded by different alleles of the same gene. Alleles can be present in homozygous (both are same) or in heterozygous (different alleles) condition in a gene.

Answer 7

Chapter 2, Problem 32P

Summary Introduction

a.

To explain:

The differences between the dominant allele P and the recessive allele p of the gene that is responsible for the flower colors.

Introduction:

Different varieties of the same trait are coded by different alleles of the same gene. Alleles can be present in homozygous (both are same) or in heterozygous (different alleles) condition in a gene.

Answer 8

Summary Introduction

b.

To determine:

Whether some different gene would have been the one that governs Mendel’s flower colors or not based on the given biochemical pathway

Introduction:

Phenotypic expression of a gene is dependent on the types of alleles present in that gene. The homozygous and heterozygous condition causes expression of the dominant allele only, except in the case of co-dominance. Recessive alleles are expressed in homozygous (recessive) conditions only.

Answer 9

Summary Introduction

b.

To determine:

Whether some different gene would have been the one that governs Mendel’s flower colors or not based on the given biochemical pathway

Introduction:

Phenotypic expression of a gene is dependent on the types of alleles present in that gene. The homozygous and heterozygous condition causes expression of the dominant allele only, except in the case of co-dominance. Recessive alleles are expressed in homozygous (recessive) conditions only.

Answer 10

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Answer 11

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Answer 12

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Answer 13

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Solution Summary: The author explains the differences between the dominant and the recessive alleles of the gene that is responsible for the flower colors.

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