What is a hormone-response element?
a. A receptor for a steroid hormone
b. A receptor for a polypeptide hormone
c. A segment of DNA where a hormone–receptor complex binds
d. An enzyme that is activated in response to hormone binding and produces a second messenger

검증된 단계별 안내

Understand the concept of hormone-response elements: These are specific sequences of DNA that are recognized and bound by hormone-receptor complexes.

Identify the role of hormone-receptor complexes: When a hormone binds to its receptor, the complex can interact with DNA at hormone-response elements to regulate gene expression.

Differentiate between types of hormones: Steroid hormones typically pass through cell membranes and bind to intracellular receptors, forming complexes that can directly interact with DNA.

Consider the options given: Evaluate each option to determine which one accurately describes the function and location of hormone-response elements.

Select the correct answer: Based on the understanding that hormone-response elements are DNA segments where hormone-receptor complexes bind, choose the option that best fits this description.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Hormone-Response Element

A hormone-response element (HRE) is a specific sequence of DNA that a hormone-receptor complex binds to, influencing gene expression. When a hormone binds to its receptor, the complex can interact with HREs in the promoter region of target genes, modulating transcription and ultimately affecting cellular function.

Steroid Hormone Receptors

Steroid hormone receptors are intracellular proteins that bind steroid hormones, such as estrogen or testosterone. Upon binding, these receptors undergo a conformational change, allowing them to interact with hormone-response elements in the DNA, thereby regulating gene expression and affecting various physiological processes.

Gene Regulation by Hormones

Gene regulation by hormones involves the modulation of gene expression through hormone-receptor interactions with DNA. Hormones can activate or repress specific genes by binding to receptors that interact with hormone-response elements, leading to changes in mRNA synthesis and protein production, which are crucial for maintaining homeostasis and responding to environmental changes.