What Is Meant by the "Beads on a String" Model

question 30

Multiple Choice

What is meant by the "beads on a string" model of chromatin?

• A)The beads are the histones, and the string is the transcriptionally active DNA loops.
• B)The beads are the nucleosomes, and the string is the linker DNA.
• C)The beads are molecules of DNA polymerase that attach to the DNA string.
• D)The beads are ribosomes, and the string is the mRNA that has been transcribed from active chromatin.
• E)The beads are the heterochromatic regions that are tightly compacted, and the strings are euchromatic regions that are being actively transcribed.

Describe the significance of play in child development and identify different types of play.

Understand the concepts of empathy, habituation, and sensitivity in child development.

Discuss the effects of testosterone and other biological factors on children's behavior and development.

Explain how children's self-concepts develop and relate to their fears.

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Definitions:

Observational Learning

The process of acquiring knowledge and skills by observing and imitating others.

Operant Conditioning

A method of learning that employs rewards and punishments for behavior, encouraging the subject to associate certain behaviors with consequences.

Classical Conditioning

A learning strategy in which two stimuli are continually paired; the response that is initially attracted by the second stimulus is in time attracted by the first stimulus alone.

Observational Learning

The act of acquiring behaviors through observation and replication of others.