In humans, where does DNA replication take place?
RNA from a bear is compared to RNA from a sunflower. Both will contain the
A scientist is doing an experiment to identify different molecules. Some components of these molecules are listed in this table. Which of the four molecules is DNA, based on the table to the right?
The diagram shown here represents a portion of a DNA molecule. The part indicated by the arrow could be 
Use the diagram to the right AND your knowledge of biology to answer this question. Structures 3 and 4 are held together by 
In nucleotides, the letters A, G, C, and T represent
The cellular process of creating two new DNA molecules from one original copy is called replication. Which statement is the BEST description of this process?
Which of the following best describes the image? 
Fill in the box for Part A
Fill in the box for Part B
Fill in the box for Part C
Fill in the box for Part D
Fill in the box for Part E
Fill in the box for Part E
Replicate the following strand of DNA by listing its complementary strand.
A T C T T G C A A A G G C T
The molecule copied directly from DNA is represented by number __?
What is an example of a molecule produced by the process shown below?
Structure number 2 represents a 
The bond represented by number 5 is a ____ bond. 
If a portion of a messenger RNA molecule contains the base sequence A-A-U, then the corresponding anti-codon on the tRNA base sequence is
The sequence of ________________ in a DNA molecule determines the protein that will be produced
During _____________, the cell uses information from messenger RNA to make polypeptides
How many amino acids are coded for by the strand of mRNA shown here? Assume the reading frame begins with the first nucleotide
A U G U A C
During protein synthesis, what does mRNA do?
Draw a line to match the following terms with their definition
Which type(s) of RNA are involved in Transcription
Which type(s) of RNA are involved in Translation
Where does Transcription occur?
Where does Translation occur?
What is created as a result of Transcription?
What is created as a result of Translation?
tRNA brings amino acids to the
tRNA has
tRNA transfers amino acids during
The step of protein synthesis that occurs in the cytoplasm is
Transcribe the DNA sequence to mRNA:
A T A T A C T T T G C G A T G G C T A T T C A G A C T
Translate the mRNA sequence to form a protein. Make sure to start translating at the start codon! Use the genetic code below to help you.
mRNA: U A U A U G A A A C G C U A C C G A U A A G U C U G A
A sperm cell (n) of an octopus has 14 chromosomes. What is the total number of chromosomes that should be present in a stomach cell (2n) of the same octopus?
The distribution of chromosomes in one type of cell division is shown in the diagram below. Which process is being represented in the diagram?
Which letter(s) in the diagram correspond to cells that are haploid?
Compared to the number of chromosomes contained in a body cell, how many chromosomes would normally be contained in a gamete?
Which cells are NOT formed during meiosis?
Somatic cells in humans contain ____ chromosomes and an example is ______
Use the following chart to answer:
Organism | Diploid # of chromosomes |
Mosquito | 6 |
Frog | 26 |
Pea Plant | 14 |
Corn | 20 |
What is the number of chromosomes for haploid corn cells?
Use the following chart to answer:
Organism | Diploid # of chromosomes |
Mosquito | 6 |
Frog | 26 |
Pea Plant | 14 |
Corn | 20 |
If a mosquito cell had 3 chromosomes, would that cell be diploid or haploid?
Why is it important that gamete cells have only one set of chromosomes?
Explain the difference between the purpose of mitosis and the purpose of meiosis.
Draw an "x" or circle in the appropriate column, deciding if each statement describes mitosis, meiosis, or both.
Karyotypes are very important diagrams for geneticists. List 1 thing you can learn from a karyotype.