Question 1
Question
What bases are complementary bases?
Question 2
Question
How many chromosomes are in the human body?
Answer
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23
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46 in 23 pairs
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36
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52 in 36 pairs
Question 3
Question
How many chromosomes do gametes have?
Question 4
Answer
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something you wear
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a part of a cell
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a section of DNA
Question 5
Question
What makes one gene different to another?
Answer
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the order of bases and the length of the DNA strand
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the order of bases and the shape of the DNA
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the shape of the DNA and the length of the DNA strand
Question 6
Question
What is the term used to describe the order of bases along the DNA strand?
Answer
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Base Order
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Genetic Code
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Genetic Order
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Base Code
Question 7
Question
What are proteins?
Answer
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proteins are the structural materials that build up your cells and tissues, most hormones and enzymes
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proteins are another name for chromosomes
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proteins are genes that don't have complementary base pairing
Question 8
Question
In what year did Johannes Friedrich Miescher discover DNA?
Question 9
Question
Who discovered the components and arrangement of the nucleotides?
Answer
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Phoebus Levene
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Francis Crick
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Sir William Henery Bragg
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Erwin Chargaff
Question 10
Question
Who proved in 1943 that DNA does hold the genetic code?
Answer
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Oswald Avery
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Erwin Chargaff
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Rosalind Franklin
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Sir William Henry Bragg
Question 11
Question
What rules were created by Erwin Chargaff in the 1940's?
Answer
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-nucleotides are not arranged in the same order in all species
-in all species, the amounts of adenine and thymine in the DNA are always similar, as are the amounts of guanine and cytosine.
-the amount of adenine plus guanine is always equal to the amount of thymine plus cytosine
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-nucleotides are not arranged in the same order in all species
-in all species, the amounts of adenine and thymine in the DNA are always similar, as are the amounts of guanine and cytosine.
-each genetic code contains 'instructions' for a specific protein
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-each person has 46 chromosomes, in 23 pairs
-in all species, the amounts of adenine and thymine in the DNA are always similar, as are the amounts of guanine and cytosine.
-the amount of adenine plus guanine is always equal to the amount of thymine plus cytosine
-
-the amount of adenine plus guanine is always equal to the amount of thymine plus cytosine
-DNA determines characteristics
-each genetic code contains 'instructions' for a specific protein
Question 12
Question
What was created in 1913-14 by Sir William Bragg and his son Sir William Lawrence?
Question 13
Question
In what time period did Rosalind Franklin and her partner Maurice Wilkins created a X-ray crystallograph of DNA, discovering the double helix structure?
Answer
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early 1950's
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late 1950's
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early 1960's
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late 1960's
Question 14
Question
Who refined the DNA structure and published it in 1951?
Answer
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James Watson and Francis Crick
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Rosalind Franklin and Maurice Wilkins
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Maurice Wilkins and James Watson
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Francis Crick and Rosalind Franklin
Question 15
Question
Who won the joint nobel prize in 1965?
Answer
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Rosalind Franklin, James Watson, Francis Crick and Maurice Wilkins
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Rosalind Franklin, James Watson and Maurice Wilkins
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James Watson, Francis Crick and Maurice Wilkins
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Rosalind Franklin, James Watson, Oswald Avery and Francis Crick
Question 16
Question
What year was the book, "The Double Helix" by James Watson, released?
Question 17
Question
What is the term used to describe the copying of DNA?
Answer
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copying
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doubling
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replication
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imprinting
Question 18
Question
What happens in the process of replication?
Answer
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1. the strands of the double helix separate from each other, much like a zip unzipping, leaving the bases exposed
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2. the exposed nucleotides pair with the exposed bases
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3. the sugar and phosphate molecules bond with neighbouring nucleotides, creating two identical DNA strands
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1. the DNA strand is split in half horizontally
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2. it is then separated in half, much like a zip unzipping, exposing the bases
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3. the bases then replicate and attach to the exposed bases
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4. the DNA strands then 'rezip', creating two identical DNA strands
Question 19
Question
Mitosis produces gametes that have half the number of chromosomes of the parent cell
Question 20
Question
Meiosis produces gametes that have half the number of chromosomes of the parent cell
Question 21
Question
What are network fibres?
Answer
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the strands that pull the chromosomes to either side of the cell
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underground wires that control the internet and phone lines
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coils found inside a nucleus
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another name for chromosome
Question 22
Question
Diploid means half the amount of chromosomes within an organism
Question 23
Question
In gametes there is a haploid amount of chromosomes
Question 24
Question
What is the term used to describe non-sex chromosomes?
Answer
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autosomes
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non-sex chromosomes
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normal chromosomes
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hapisomes
Question 25
Question
homologus pairs are pairs of chromosomes