NEW
Font size
WorksheetsYear 10 Genetics
Total questions: 35
Worksheet time: 18mins
What is this?
DNA
Chromosome
Chromatid
Nucleotide
What is represented by the red box?
Phosphate group
Nutrient-rich base
Nitrogen-rich base
Ribose sugar
What is represented by the blue box?
Phosphate group
Nutrient-rich base
Nitrogen-rich base
Ribose sugar
What is represented by the light blue box?
Phosphate group
Nutrient-rich base
Nitrogen-rich base
Ribose sugar
The missing bases are...
Guanine, Thymine, Guanine, Adenine
Guanine, Thymine, Cytosine, Adenine
Guanine, Thymine, Guanine, Thymine
Cytosine, Thymine, Guanine, Adenine
Complementary base pairing means
A only pairs with T, C only pairs with G.
A only pairs with C, T only pairs with G.
A only pairs with G, T only pairs with C.
A only pairs with T, T only pairs with G.
The backbone of the DNA is made up of
Nitrogen-rich bases and adenine groups.
Ribose sugar units and bases.
Phosphate groups and ribose sugar units.
Phosphate groups and nitrogen-rich bases units.
Label #1
Cell
Nucleus
Chromosome
Centromere
Label #2
Cell
Centromere
Chromosome
Nucleus
Label #3
Cell
Centromere
Chromosome
Nucleus
Label #4
Double helix
Centromere
Chromosome
Nitrogen-rich bases
Label #5
Double helix
Centromere
Backbone
Nitrogen-rich bases
Label #6
Double helix
Centromere
Backbone
Nitrogen-rich bases
Label #7
Double helix
Centromere
Backbone
Nitrogen-rich bases
How many chromosomes do most human cells have?
23
46
22
2
How many chromosomes do human sex cells have?
23
46
22
2
How many copies of each chromosomes do most human cells contain?
23
46
22
2
How many different autosomes do haploid cells contain in humans?
23
46
22
2
How many sex chromosomes do diploid cells contain in humans?
23
46
22
2
What are homologous chromosomes NOT?
Chromosomes that contain the same genes
Chromosomes that have the same length
Chromosomes that have the centromere in the same location
Chromosomes that contain the same alleles for all genes
Which statement is incorrect?
After DNA replication, there are two chromosomes with one chromatid.
After DNA replication, there is one chromosome with two chromatids.
Chromosomes and chromatids have one centromere.
The centromere holds the chromatids together.
Identify the phase.
Prophase
Metaphase
Anaphase
Telophase
Identify the phase.
Prophase
Metaphase
Anaphase
Telophase
Identify the phase.
Prophase
Metaphase
Anaphase
Telophase
Identify the phase.
Interphase
Cytokinesis
Anaphase
Telophase
Identify the phase.
Interphase
Cytokinesis
Anaphase
Telophase
Identify the phase.
Interphase
Cytokinesis
Anaphase
Telophase
Which of the pairs are homozygous (Ho) and which pairs are heterozygous (He)?
He, He, Ho
He, Ho, He
Ho, Ho, He
Ho, Ho, Ho
What word is missing under #1?
Genes
Gametes
Alleles
Chromosomes
What word is missing under #2?
RR
Rr
rr
R
The R and r represent...
Different genotypes
Different phenotypes
Different alleles
Different genes
Rr represents...
Different genotypes of the offspring
Different phenotypes of the offspring
Different genotypes of the parents
Different phenotypes of the parents
What is the genotypes of the parents?
Both are rr
Both are RR
Both are Rr
Both are rR
What is the genotypes of the offspring?
Rr, rr
RR, rr
RR, Rr
RR, Rr, rr
Which is the most likely genotype of the offspring?
Rr
RR
rr
rR
