To answer: Distinguish between filamentous fungus and colorless alga. Introduction: Fungi are unicellular/ multicellular or multinucleate organisms having filamentous structures called hyphae. Fungi are eukaryotes with the heterotrophic mode of nutrition. Vegetative growth of fungi takes place with the help of hyphae. Algae are unicellular to multicellular prokaryotic organisms. Mode of nutrition in algae is autotrophs but some of the green algae, brown algae (dinoflagellates) have become heterotrophs (colorless algae). Algae and fungi have a cell wall containing cellulose and chitin as their characteristic structures.

Question

The shape of radishes may be long (SL/SL), oval (SL/SS), or round (SS/SS), and the color of radishes may be red (CR/CR), purple (CR/CW) or white (CW/CW). If a long, red radish plant is crossed with a round, white plant, what will be the appearance of the F1 and F2 generations?

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Question

Chapter 12, Problem 4CT

Summary Introduction

To answer:

Distinguish between filamentous fungus and colorless alga.

Introduction:

Fungi are unicellular/ multicellular or multinucleate organisms having filamentous structures called hyphae. Fungi are eukaryotes with the heterotrophic mode of nutrition. Vegetative growth of fungi takes place with the help of hyphae. Algae are unicellular to multicellular prokaryotic organisms. Mode of nutrition in algae is autotrophs but some of the green algae, brown algae (dinoflagellates) have become heterotrophs (colorless algae). Algae and fungi have a cell wall containing cellulose and chitin as their characteristic structures.

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The shape of radishes may be long (SL/SL), oval (SL/SS), or round (SS/SS), and the color of radishes may be red (CR/CR), purple (CR/CW) or white (CW/CW). If a long, red radish plant is crossed with a round, white plant, what will be the appearance of the F1 and F2 generations?

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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…