To propose a hypothesis: How steroid and thyroid hormone receptor encode genes that evolved. Concept introduction: Endocrine cells secrete hormones into the extracellular fluids, which are signaling molecules. The secreted hormones reach target cells through the bloodstream. Hormones bind only to specific cells based on the corresponding receptors and they act through the chemical signals. They maintain homeostasis and regulate growth, development, blood pressure, metabolism and fluid concentration in the body. Both thyroid and steroid hormones are lipid soluble hormones, they can diffuse plasma membrane and bind to transport proteins inside the cells and also they bind to the cytoplasmic receptors. Both the receptors have structural similarities and they are from nuclear receptor “superfamily” of proteins. The steroid/thyroid receptor isoforms may be evolved from the same gene by post-translational modifications or splicing.

Question

Want to see the full answer?

Answer 1

Question

Chapter 45, Problem 9TYU

Summary Introduction

To propose a hypothesis: How steroid and thyroid hormone receptor encode genes that evolved.

Concept introduction:

Endocrine cells secrete hormones into the extracellular fluids, which are signaling molecules. The secreted hormones reach target cells through the bloodstream. Hormones bind only to specific cells based on the corresponding receptors and they act through the chemical signals. They maintain homeostasis and regulate growth, development, blood pressure, metabolism and fluid concentration in the body.

Both thyroid and steroid hormones are lipid soluble hormones, they can diffuse plasma membrane and bind to transport proteins inside the cells and also they bind to the cytoplasmic receptors. Both the receptors have structural similarities and they are from nuclear receptor “superfamily” of proteins. The steroid/thyroid receptor isoforms may be evolved from the same gene by post-translational modifications or splicing.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

In order to establish the expiration date of perishable food, growth curve data must be collected. Once the microbial load is so high that it poses a hazard to human health, the food item is no longer considered safe (expired). Generally a load of x50,000 bacteria/gram is considered unsafe. Your task is to determine the microbial growth curves for MicroYo, a new brand of yogurt. The growth is determined by sampling the yogurt and growing the bacterial isolates in broth culture which is then serially diluted by a total of x10,000 and inoculated onto standard petri plates of nutrient agar. The following colony counts are measured: Time (days) MicroYo colony count# 1 1 4 1 12 2 16 20 4 7 What day should you recommend expiring the yogurt (the last possible date before the microbial load is unsafe). 12 4 20 16

9. Chicken combs in chickens is an example where you see interactions between genes. See potential genotypes and phenotypes below. Which genotype, when mated to a rose comb chicken, will produce progeny that are 50% walnut comb and 50% pea comb? walnut (RRPP) walnut (RrPP) pea (rrPP) walnut (RRPP) walnut (RrPp) pea (rrPp) rose rose single (RRPP) (Rrpp) (rrpp)

Describe a compound light microscope and its importance in microbiology (2) examples of at least two microbes viewed under a compound light microscope and their general characteristics (note: the microbes you choose do not need to be the ones outlined in the above tutorial video) and (3) at least one source you used for the information included in your infographic.