Meiosis
DNA and Genes
Transcription and Translation
Gene Expression
Control of Gene Expression
100

Two of this make up one duplicated chromosome

What is Sister Chromatids?

100

These are the two components of a chromosome

DNA and histones

100

Transcription occurs in what

The nucleus

100

True or false: Both prokaryotes and eukaryotes control their gene expression

True

100

DNA is packaged with this protein

Histone

200
Humans have this many homogolous chromosomes 

What is 22

200

DNA replication begins at this

Origin of Replication
200

In elongation, mRNA is synthesized from which end order

5’ to 3’

200

This is a cluster of cotranscribed genes with related functions

Operon

200

Methylation does this to the DNA coiling

Tightens DNA coiling
300

Having multiple sets of chromosomes is called this

Polyploidy

300

This enzyme untwists the double helix and separates the strands

Helicase

300

These are non coding strands of DNA, and these are the coding strands of DNA

Introns, Exons

300

This is the segment of DNA that acts as the on/off switch, where repressors bind

Operator

300

Methylation is one type of histone modifications, these are the other two

Phosphorylation and Acetylation

400

Crossing over occurs during this phase of meiosis

Prophase I

400

The fragments formed from the lagging strand are called this

Okazaki fragments

400

In translation, this unit and a protein are used in elongation to create a polypeptide chain

rRNA (ribosomal RNA)

400

This is a set of separate genes, or operons, controlled by a single regulatory protein

Regulon

400

These are essential for the transcription of all protein coding genes

General Transcription Factors

500
Other than crossing over, what are two sources of genetic variation

Independent Assortment and Random Fertilization

500

This enzyme replaces the RNA primers with DNA nucleotides

DNA polymerase I

500

This is the site in rRNA where empty tRNA exit from 

E site

500

This kind of operon is usually turned off but can be switched on

Inudicble Operon

500

These elements are located near the promoter and help regulate he transcription of genes

Promoter-Proximal elements

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