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WorksheetsBiology Ch. 10
Total questions: 20
Worksheet time: 20mins
The process by which haploid gametes combine is called ____.
interphase
fertilization
genetic variation
synapsis
What is produced by the crossing over and independent assortment of genes?
X chromosomes
genetic recombination
Y chromosomes
alleles
____ are heterozygous for two different traits.
dihybrids
monohybrids
alleles
recessive genes
An organism with two different alleles for a particular trait is ____.
incapable of reproduction
homozygous
heterozygous and homozygous
heterozygous
A (an) ____ is an alternative form of a single gene passed from generation to generation.
hybrid
phenotype
allele
zygote
What happens during metaphase I of meiosis?
sister chromatids split
haploid number of chromosomes line up at the cell's equator
DNA replication occurs
interphase occurs
What does this figure depict?
the anaphase I stage of meiosis
a pair of homologous chromosomes in prophase I
two zygotes
a single chromatid
Which of the following is not true of meiosis?
involves DNA replication
provides genetic variation
occurs in reproductive cells
prevents genetic variation
Sex cells containing half the total number of chromosomes are called?
chromosomes
diploid cells
gametes
phenotypes
Which statement pertains to Mendel's law of segregation?
Homozygous organisms are called hybrids.
Two alleles for each trait separate during meiosis.
Allele pairs are called a genotype.
Dominant traits are visible.
Which of these pertains to Mendel's law of independent assortment?
observable characteristics of a trait
separation of alleles during meiosis
random distribution of alleles
protein production
Which of these applies to genetic recombination?
no formula can calculate gene combinations
genes are prevented from combining
gene combinations are produced by crossing over
involves glucose production
What process does this figure show?
protein synthesis
replication of DNA
chromosomal segment exchange
mitosis
What does TT represent?
a genotype consisting of two dominant alleles
a heterozygous trait
a single allele
a genotype consisting of two recessive alleles
The observable expression of an allele pair is called a ____.
recessive gene
genotype
monohybrid cross
phenotype
Polyploidy is the occurrence of one or more extra sets of ____ in an organism.
chromosomes
zygotes
phenotypes
diploids
Meiosis produces ____ in gametes.
enzymes
identical daughter cells
46 chromosomes
genetic variation
Homologous chromosomes separate during which phase(s) of meiosis?
interphase
anaphase I
telophase I
interphase and telophase I
Diploids contain twice the number of chromosomes found in a single ____.
gamete
zygote
protein molecule
synapse
Crossing over results in ____.
the removal of genotypes from a zygote
less genetic variation
fewer combinations of genes
greater genetic variation
