2853372
Descripción
Test por Courtney Baxter, actualizado hace más de 1 año
|
|
Creado por Courtney Baxter
hace casi 9 años
|
|
Pregunta 1
Pregunta
What bases are complementary bases?
Respuesta
-
A+T C+G
-
A+C G+T
-
A+G C+T
Pregunta 2
Pregunta
How many chromosomes are in the human body?
Respuesta
-
23
-
46 in 23 pairs
-
36
-
52 in 36 pairs
Pregunta 3
Pregunta
How many chromosomes do gametes have?
Respuesta
-
23
-
46
-
52
-
13
Pregunta 4
Pregunta
What is a gene?
Respuesta
-
something you wear
-
a part of a cell
-
a section of DNA
Pregunta 5
Pregunta
What makes one gene different to another?
Respuesta
-
the order of bases and the length of the DNA strand
-
the order of bases and the shape of the DNA
-
the shape of the DNA and the length of the DNA strand
Pregunta 6
Pregunta
What is the term used to describe the order of bases along the DNA strand?
Respuesta
-
Base Order
-
Genetic Code
-
Genetic Order
-
Base Code
Pregunta 7
Pregunta
What are proteins?
Respuesta
-
proteins are the structural materials that build up your cells and tissues, most hormones and enzymes
-
proteins are another name for chromosomes
-
proteins are genes that don't have complementary base pairing
Pregunta 8
Pregunta
In what year did Johannes Friedrich Miescher discover DNA?
Respuesta
-
1869
-
1896
-
1986
-
1698
Pregunta 9
Pregunta
Who discovered the components and arrangement of the nucleotides?
Respuesta
-
Phoebus Levene
-
Francis Crick
-
Sir William Henery Bragg
-
Erwin Chargaff
Pregunta 10
Pregunta
Who proved in 1943 that DNA does hold the genetic code?
Respuesta
-
Oswald Avery
-
Erwin Chargaff
-
Rosalind Franklin
-
Sir William Henry Bragg
Pregunta 11
Pregunta
What rules were created by Erwin Chargaff in the 1940's?
Respuesta
-
-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
-
-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
-
-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
Pregunta 12
Pregunta
What was created in 1913-14 by Sir William Bragg and his son Sir William Lawrence?
Respuesta
-
X-ray crystallography
-
The first DNA structure (fake)
-
The first drawing of DNA
-
An artificial gene
Pregunta 13
Pregunta
In what time period did Rosalind Franklin and her partner Maurice Wilkins created a X-ray crystallograph of DNA, discovering the double helix structure?
Respuesta
-
early 1950's
-
late 1950's
-
early 1960's
-
late 1960's
Pregunta 14
Pregunta
Who refined the DNA structure and published it in 1951?
Respuesta
-
James Watson and Francis Crick
-
Rosalind Franklin and Maurice Wilkins
-
Maurice Wilkins and James Watson
-
Francis Crick and Rosalind Franklin
Pregunta 15
Pregunta
Who won the joint nobel prize in 1965?
Respuesta
-
Rosalind Franklin, James Watson, Francis Crick and Maurice Wilkins
-
Rosalind Franklin, James Watson and Maurice Wilkins
-
James Watson, Francis Crick and Maurice Wilkins
-
Rosalind Franklin, James Watson, Oswald Avery and Francis Crick
Pregunta 16
Pregunta
What year was the book, "The Double Helix" by James Watson, released?
Respuesta
-
1968
-
1869
-
1986
-
1896
Pregunta 17
Pregunta
What is the term used to describe the copying of DNA?
Respuesta
-
copying
-
doubling
-
replication
-
imprinting
Pregunta 18
Pregunta
What happens in the process of replication?
Respuesta
-
1. the strands of the double helix separate from each other, much like a zip unzipping, leaving the bases exposed
-
2. the exposed nucleotides pair with the exposed bases
-
3. the sugar and phosphate molecules bond with neighbouring nucleotides, creating two identical DNA strands
-
1. the DNA strand is split in half horizontally
-
2. it is then separated in half, much like a zip unzipping, exposing the bases
-
3. the bases then replicate and attach to the exposed bases
-
4. the DNA strands then 'rezip', creating two identical DNA strands
Pregunta 19
Pregunta
Mitosis produces gametes that have half the number of chromosomes of the parent cell
Respuesta
- True
- False
Pregunta 20
Pregunta
Meiosis produces gametes that have half the number of chromosomes of the parent cell
Respuesta
- True
- False
Pregunta 21
Pregunta
What are network fibres?
Respuesta
-
the strands that pull the chromosomes to either side of the cell
-
underground wires that control the internet and phone lines
-
coils found inside a nucleus
-
another name for chromosome
Pregunta 22
Pregunta
Diploid means half the amount of chromosomes within an organism
Respuesta
- True
- False
Pregunta 23
Pregunta
In gametes there is a haploid amount of chromosomes
Respuesta
- True
- False
Pregunta 24
Pregunta
What is the term used to describe non-sex chromosomes?
Respuesta
-
autosomes
-
non-sex chromosomes
-
normal chromosomes
-
hapisomes
Pregunta 25
Pregunta
homologus pairs are pairs of chromosomes
Respuesta
- True
- False
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.