Biology
Biology
10th Edition
ISBN: 9780321794260
Author: Audesirk, Teresa/ Audesirk
Publisher: Pearson College Div
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Chapter 34.1, Problem 1CYL
Summary Introduction

To enlist:

The six major types of nutrients and the role of each in the body.

Introduction:

The body requires a definite amount of essential nutrients for proper growth and development of the body. The body also stores nutrients for situations when a body does not get nutrients.

Summary Introduction

To determine:

The measurement of food energy, and also determine how energy is obtained, used, and stored by the body.

Introduction:

The organisms acquire energy by consuming the food and converting it into smaller particles and generate energy. The energy is used further for the construction of other biomolecules for the development of the body with the help of smaller biomolecules.

Summary Introduction

To define:

The essential nutrients and also describe five different categories of these.

Introduction:

Nutrition is a branch of science that delineates the interaction of organisms and their nutrients. There are two types of essential nutrients which are required by the body in order to regulate the normal functioning. They are micronutrients and macronutrients:

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…
Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:
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