Review of 14.3 Gene Regulation and Expression Part 2

What process allows all body cells to have the same DNA?

• Cellular respiration

• Meiosis

• Photosynthesis

• Cell Division/The Cell Cycle

In eukaryotes, DNA binding factors that play a role in regulating gene expression are called

• Gene activators
• Transcription factors
• DNA regulators
• Protein regulators

True or False: The environment does NOT play a role in gene regulation

• True

• False

What causes cells to function differently?

• Ribosomal dysfunction, Cytoskeletal disruption

• DNA replication, Protein synthesis

• Mitochondrial function, Golgi apparatus activity

• Gene regulation, epigenetic modifications, environmental factors, and cell signaling pathways

The activation of genes in different parts of an embryo cause cells to __________.

• proliferate
• migrate
• differentiate
• replicate

Homeotic genes: set of master control genes that develop in ____________

• only in one part of the body across all animals

• all life forms

• all plants

• specific parts of the body across most animals

Tightly packed chromatin leads to

• DNA binding sites not being accessible

• Transcription factors are able to access DNA binding sites

• Gene expression is increased

• Gene expression stays the same

Dutch children born near the end of WWII had much higher rates of obesity, diabetes and cardiovascular disease than normal. Why?

• Excessive exercise during WWII caused metabolic changes in Dutch children
• Genetic mutations in Dutch children caused obesity, diabetes, and cardiovascular disease

• Dutch children were exposed to high levels of pollution during WWII leading to health issues
• Severe malnutrition during WWII led to 'fetal programming', predisposing Dutch children to obesity, diabetes, and cardiovascular disease.

In Himalayan rabbits raised above 30 degree temperatures a particular gene is inactive and the rabbit has ______ color in the fur.

• white
• brown
• gray
• black

True or False: Genetic regulation is different from genetic mutation

• True

• False