The effect of valproic acid if a woman consumes it during her early days of pregnancy and beneficial effects of folic acid supplements given to this pregnant woman. Introduction: The time period for the development of the fetus (gestation) in humans is divided into three trimesters, each having a period of three months. The embryo in the first trimester divides rapidly as it undergoes several cell divisions and the genes present signals the differentiation of the cells for the formation of vital organs such as heart, brain, respiratory, and digestive system . Thus, the embryo of this trimester is critical and sensitive to the various factors of the environment like smoke, radiation, and chemicals.

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 43, Problem 4Q

Summary Introduction

To review:

The effect of valproic acid if a woman consumes it during her early days of pregnancy and beneficial effects of folic acid supplements given to this pregnant woman.

Introduction:

The time period for the development of the fetus (gestation) in humans is divided into three trimesters, each having a period of three months. The embryo in the first trimester divides rapidly as it undergoes several cell divisions and the genes present signals the differentiation of the cells for the formation of vital organs such as heart, brain, respiratory, and digestive system. Thus, the embryo of this trimester is critical and sensitive to the various factors of the environment like smoke, radiation, and chemicals.

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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:

Answer 2

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 43, Problem 4Q

Summary Introduction

To review:

The effect of valproic acid if a woman consumes it during her early days of pregnancy and beneficial effects of folic acid supplements given to this pregnant woman.

Introduction:

The time period for the development of the fetus (gestation) in humans is divided into three trimesters, each having a period of three months. The embryo in the first trimester divides rapidly as it undergoes several cell divisions and the genes present signals the differentiation of the cells for the formation of vital organs such as heart, brain, respiratory, and digestive system. Thus, the embryo of this trimester is critical and sensitive to the various factors of the environment like smoke, radiation, and chemicals.

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Answer 3

Question

Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 43, Problem 4Q

Summary Introduction

To review:

The effect of valproic acid if a woman consumes it during her early days of pregnancy and beneficial effects of folic acid supplements given to this pregnant woman.

Introduction:

The time period for the development of the fetus (gestation) in humans is divided into three trimesters, each having a period of three months. The embryo in the first trimester divides rapidly as it undergoes several cell divisions and the genes present signals the differentiation of the cells for the formation of vital organs such as heart, brain, respiratory, and digestive system. Thus, the embryo of this trimester is critical and sensitive to the various factors of the environment like smoke, radiation, and chemicals.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 43, Problem 4Q

Summary Introduction