Worksheetsmr alberding quiz pt.2
Total questions: 17
Worksheet time: 9mins
Human females produce egg cells that have
two X chromosomes.
one X chromosome.
one X and one Y chromosome.
one X or one Y chromosome.
What percentage of human sperm cells carry an X chromosome?
0%
100
50%
25%
A human female inherits
twice as many sex chromosomes as a human male inherits.
all of the same genes that a human male inherits.
two copies of every gene located on the X chromosome.
one copy of every gene located on the Y chromosome.
How many chromosomes are shown in a normal human karyotype?
44
46
23
22
Human males have
one X and one Y chromosome.
one X chromosome only.
two Y chromosomes.
two X chromosomes.
Which of the following form(s) a Barr body?
both of the X chromosomes in a female cell
one of the X chromosomes in a male cell
one of the Y chromosomes in a male cell
one of the X chromosomes in a female cell
The formation of a Barr body inactivates
one gene on one X chromosome in a male cell.
one whole Y chromosome in a male cell.
half of the genes on one X chromosome in a female cell.
one whole X chromosome in a female cell.
Which of the following pairs of genotypes result in the same phenotype?
IBIB and IBi
IBIB and IAIB
IBi and ii
IAIA and IAIB
If the allele for having a white forelock is dominant, family members WITHOUT a white forelock are
homozygous dominant.
trisomal.
heterozygous.
homozygous recessive.
The number of chromosomes in a gamete is represented by the symbol
N.
Z.
Y.
X.
Chromosomes form tetrads during
interphase.
prophase I of meiosis.
metaphase I of meiosis.
anaphase II of meiosis.
A tetrad consists of
the four copies of a chromosome that are normally present in cells.
a homologous pair of chromosomes, each made of two chromatids.
a parental chromosome that was replicated to form a pair, then replicated again.
two sister chromatids that have each been replicated during interphase.
One way that meiosis I is different from mitosis is that
meiosis I produces 2 haploid daughter cells, but mitosis produces 2 diploid daughter cells.
replication occurs during interphase before mitosis, but not before meiosis I.
sister chromatids are pulled apart during meiosis I, but not during mitosis.
homologous chromosomes are segregated during mitosis, but remain together during meiosis I.
Which of the following assort independently?
multiple alleles
codominant alleles
linked genes
chromosomes
Gene maps are based on
the number of genes in a cell.
the frequencies of crossing-over.
independent assortment.
genetic diversity.
If two genes are on the same chromosome and rarely assort independently,
crossing-over never occurs between the genes.
crossing-over always occurs between the genes.
the genes are probably located close to each other.
the genes are probably located far apart from each other.
If an organism has four linkage groups, it has eight chromosomes.
true
false
