Which of the Following Statements Provides the Best Support for the Hypothesis

question 7

Multiple Choice

Which of the following statements provides the best support for the hypothesis that the mitochondria and plastids of modern eukaryotic cells were originally independent, free-living bacteria?

• A) The RNA sequence of ribosomes in mitochondria and plastids is similar in sequence to that of the cytoplasmic ribosomes in the eukaryotic cell and both mitochondria and plastids have histone proteins wrapped around the RNA.
• B) The RNA of mitochondria and plastids are double stranded and allow these organelles to replicate themselves in a way that is similar to that of modern bacteria.
• C) The DNA of mitochondria and plastids are similar to each other and both contain histone proteins wrapped around the DNA.
• D) The DNA of mitochondria and plastids is circular and the ribosomes of mitochondria and plastids are more similar to that of bacterial ribosomes than to the ribosomes in the cytoplasm of the eukaryotic cell.

Recognize the role of whistleblowers and adversarial journalism in shaping public awareness and governmental transparency.

Understand the role and impact of nondigital news sources in contemporary American politics.

Grasp the influence of digital media on American political engagement and the concept of digital citizenship.

Identify and explain significant legislation affecting media and telecommunications in the US, including the 1996 Telecommunications Act.

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Definitions:

Monocytes

A type of white blood cell, part of the human body's immune system, that plays a role in defending the body against foreign substances.

Macrophages

Large white blood cells that are part of the immune system, engulfing and digesting cellular debris, foreign substances, and pathogens.

Vitamin K

A group of fat-soluble vitamins essential for the synthesis of proteins involved in blood coagulation and bone metabolism.

Prothrombin

A protein in blood plasma that is converted into active thrombin during coagulation.