WorksheetsYear 11 - Chromosomes to Genomes
Total questions: 20
Worksheet time: 10mins
What is the basic definition of a gene?
A segment of RNA
A unit of inheritance
A protein
A type of enzyme
At the molecular level, what does each gene contain?
Information to code for enzymes
Information that codes for specific protein(s)
Information to code for lipids
Information to code for carbohydrates
Approximately what percentage of DNA in a human cell codes for protein products?
50%
10%
25%
1%
How is information stored in DNA?
By the sequence of amino acids
By the order of nitrogen bases
By the sequence of sugars
By the order of phosphates
What are alternative forms of the same gene called?
Chromosomes
Alleles
Genomes
Codons
What is the term for the complete set of genetic material in a haploid cell?
Chromosome
Allele
Genome
Gene
What specialised functions can non-coding DNA regions have?
Initiating DNA replication
Packing DNA into chromosomes
Stabilising chromosome ends
All of the above
What is the role of regulatory elements in non-coding DNA?
Coding for proteins
Packing DNA into chromosomes
Influencing time of gene expression
Replicating DNA
How can genomic research help in agriculture?
By identifying genes for desirable traits
By sequencing proteins
By producing synthetic crops
By eliminating genetic variations
What is the structure that contains double stranded DNA within cells?
Genome
Chromosome
Allele
Protein
How many pairs of chromosomes are there in a diploid human cell?
22
23
24
46
Where does one chromosome of each homologous pair come from?
Both from the father
Both from the mother
One from the father and one from the mother
Both from the same parent
What can genomic studies reveal about a species?
The diet of the species
The environmental conditions of a species
The evolutionary relationship between species
The physical characteristics of the species
What is the term for the discrete physical structures of DNA within cells?
Chromosomes
Genes
Alleles
Genomes
Which of the following is not a function of non-coding DNA?
Coding for proteins
Helping DNA pack into chromosomes
Signaling for DNA replication
Aligning chromosomes during mitosis and meiosis
What is the genetic code based on?
Groups of four nitrogen bases
Single nitrogen bases
Groups of three nitrogen bases
Pairs of nitrogen bases
What term describes the entire sequence of coding and non-coding DNA in an organism's haploid cell?
Gene
Chromosome
Genome
Allele
What can cause large variations in the function of a gene?
A difference in the protein sequence
A difference in the DNA sequence
A difference in the RNA sequence
A difference in the lipid sequence
How many sets of linear chromosomes does the nucleus of a somatic cell contain?
One
Two
Three
Four
What is the benefit of comparing genomes of different agricultural varieties?
To identify genes for disease resitance
To determine the nutritional content
To produce synthetic crops
To eliminate genetic variations
