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WorksheetsGenetics Formative 1
Total questions: 35
Worksheet time: 24mins
"A characteristic of an organism that can be physical or behavioural" is called:
nature
nurture
trait
factor
Examples of 'nature' or inherited traits are:
injuries
shape of earlobes
ability to read
natural colour of hair
Examples of 'nurture' or environmental traits are:
injuries
reading ability
skin colour
natural hair colour
Asexual reproduction involves:
male and female gametes
one parent cell or organism
Examples of organisms that can reproduce asexually
bacteria
humans
birds
strawberries
sea star
Advantages of asexual reproduction include:
fast
slow
low energy demand
no need to find a mate
cannot adapt
Disadvantages of sexual reproduction
It's fast
It's slow
Requires one parent
Requires two parents - need to find a mate
No diversity in genetics
DNA stands for
de oxyrido nuclei acid
Deoxyribonucleic acid
dioxyribonuclei acid
di oxi ribronucleic acid
Mitosis
is a type of cell division
only occurs in the gametes
occurs in cells other than gametes
is when cells come together
Traits that mostly show up more often (there are exceptions)
dominant
recessive
What is a Gene?
A segment of RNA that encodes for a protein
A chromosome
A segment of DNA that encodes for a protein
Your genome
A geneotype is made up of a pair of ____
DNA
Chromosome
Alleles
Phenotype
Genetic traits are determined by one or more
cells
chromosomes
mitosis
genes
A version or variation of a gene
trait
gene
allele
DNA
The alleles that an organism has
genotype
phenotype
chromosome
recessive
When an organism has two of the same alleles for a gene it is called (e.g. GG)
homozygous
heterozygous
recessive
dominant
When an organism has two different alleles for a gene it is called (e.g. Gg)
homozygous
heterozygous
recessive
dominant
Which of the following are phenotypes?
curly hair
Bb
bb
Blue eyes
Having two of the same alleles for a trait (sometimes called purebred).
homozygous
hetrozygous
protein
chromosome
A term for having two different alleles for a trait (sometimes called hybrid).
protein
homozygous
heterozygous
genotype
Which of the following genotypes is homozygous recessive (purebred)?
Bb
BB
bb
BbB
A human has 46 chromosomes in their body cells. What is the number of chromosomes in their gametes (sex cells)?
46
92
23
12
What is one reason we need meiosis?
To double the number of chromosomes going into sex cells
To halve the number of chromosomes going into sex cells
To triple the number of chromosomes going into sex cells
To not change the number of chromosomes going into sex cells
CROSSING OVER INCREASES
LIFE SPAN
GENETIC VARIATION
THE NUMBER OF OFF-SPRING
ALL ARE TRUE
The process shown here is
mitosis
meiosis
How are your chromosomes inherited?
most of your chromosomes from your mother
most of your chromosomes from your father
a random number of chromosomes from each parent
half your chromosomes from your mother and half from your father.
