New York Regents Genes and Organelles

What is the control center of the cell which contains the DNA which are the instructions for the orgnanism.

• Chloroplast

• Ribosomes

• Nucleus

• Genes

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The ​ (a)   controls certain activities by expressing segments of DNA called ​ (b)   .

​ (c)   are microscopic threadlike strands of DNA.

DNA controls the production of ​ (d)   within the cell.

These proteins in turn, form the structural units of cells and control all ​ (e)   within the cell.

• nucleus
• genes
• Chromosomes
• proteins
• chemical processes

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​ Mitochondria and Chloroplast could survive on their own because they contain their own ​ (a)   and can reproduce independently to some extent. ​ (b)   are responsible for generating energy in the form of ​ (c)   through cellular respiration

​ (d)   use sunlight to produce energy through ​ (e)  

• genetic material
• ATP
• Mitochondria
• Chloroplasts
• photosynthesis

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Match the following

• Chromosome

• 
• Gene

• 
• chromatin

• 
• Nucleus

• 

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Reorder the following:

Smallest to the largest

• Chromatin

• Gene

• Chromosome

A ​ (a)   is a segment of DNA that codes for a particular protein.

​ (b)   form the structural units of cell.

Hence, you hear it commonly referred to as the gene for ​ (c)   or the gene for blue eyes.

Meanwhile ​ (d)   is the chemical that genes and chromosomes are made of.

DNA is referred to as a nucleic acid because it was first found in the ​ (e)   .

• Proteins
• gene
• baldness
• DNA
• nucleus

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Match the following

• DNA

• chemical that genes and chromosomes are made of

• Chromosomes

• codes for a particular protein

• Genes

• Where DNA was found and is named a Nucleic acid

• Nucleus

• composed of genes

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The sides of the DNA ladder (Backbone) are

• Sugar and Nitrogen bases

• Sugar and Phosphate

• Phosphate and Guanine

• Phosphate and Nitrogen bases

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The rungs of the ladder are pairs of 4 types of nitrogen bases-

Adenine, Guanine, Cytosine and Thymine

According to the Scientists "Chargaff" which is the correct base matches

• Adenine-Guanine

  Thymine-Cytosine

• Adenine-Thymine

  Cytosine-Guanine

• Adenine-Cytosine

  Guanine-Thymine

Which is an easy way to remember which Nitrogen bases match each other:

• Apple Trees

  Collard Greens

• Apple Greens

  Collard Trees