Worksheetswrapping assessment gr 10 chapter 14
Total questions: 12
Worksheet time: 7mins
Name
Class
Date
1.
What percentage of human sperm cells carry an X chromosome?
a)
0%
b)
25%
c)
50%
d)
100%
2.
A human female inherits
a)
twice as many sex chromosomes as a human male inherits
b)
one copy of every gene located on the Y chromosome
c)
two copies of every gene located on the X chromosome
d)
all of the same genes that a human male inherits
3.
The formation of a Barr body inactivates
a)
half of the genes on one X chromosomes in a female cell
b)
one whole Y chromosome in a male cell
c)
one whole X chromosome in a female cell
d)
one gene on one X chromosome in a male cell
4.
If nondisjunction occurs during meiosis,
a)
some gametes may have an extra copy of some genes
b)
only 2 gametes may form instead of 4
c)
the gamete cannot join another to form an organism
d)
the gametes redistribute chromosomes after meiosis
5.
What term is used to describe pairs of chromosomes in a karyotype?
a)
Parental
b)
Autosomal
c)
Mitosis
d)
Homologous
6.
The different forms of a gene
a)
heredity
b)
genetics
c)
gene
d)
alleles
7.
This trait always shows up in an organism when the allele is present
a)
dominant allele
b)
codominance
c)
probability
d)
recessive allele
8.
Every living thing has genetic information stored in the form of
a)
Ribosomes
b)
DNA
c)
Chloroplast
d)
Mitochondria
9.
The passing of physical characteristics, or traits, from parent to offspring.
a)
Genetics
b)
Dominant allele
c)
Heredity
d)
Recessive allele
10.
A chart or a family tree that shows the presence or absence of a trait according to the relationships within a family across several generations.
a)
Punnett square
b)
Pedigree
c)
Heredity
d)
Purebred
11.
A chart that shows all the possible ways alleles can combine in a genetic cross.
a)
Pedigree
b)
Family tree
c)
Heterozygous
d)
Punnett square
12.
What determines the sex of a baby?
a)
A. the father’s blood group
b)
B. the father’s chromosomes
c)
C. the mother’s blood group
d)
D. the mother’s chromosomes
100 %
