Worksheetschpt 3 study guide
Total questions: 32
Worksheet time: 16mins
what step did Mendel take to be sure that his pea plants cross-pollinated?
he used two withe plants
he removed the anthers of one plant
he added anthers to both plants
he used plants that were not true breeding
what happens when a true-breeding plant self-pollinates?
one of its offspring has the same traits as the parent
some of its offspring have the same traits as the parent
all of its offspring have the same traits as the parent
none of its offspring have the same traits as the parents
why were ratios important in Mendel's work
they showed that heredity does not follow a set pattern
they showed that some traits are never passed on
they showed the relationship between two different things
they showed that some recessive traits are really dominate
a plant with two dominant OR two recessive alleles is said to be...
heterozygous
cross-pollinating
homozygous
true-breeding
asexual reproduction relates to human in that
non of our body cells reproduce this way
many body cells reproduce this way
the parents cells do not divide
meiosis occurs
how are sex cells different from other human cells
sex cells have more chromosomes
sex cells have half as many chromosomes
sex cells are larger
sex cells have no chromosomes
what are homologous chromosomes
chromosomes that carry the same set of genes
chromosomes that carry different sets of genes
chromosomes that are small
chromosomes that are large
the one thing that Gregor Mendel realized could explain the results of his experiments was that
the traits were appearing at random
the male traits were always the dominate ones
each trait had two sets of instructions, one from each parent
his important research would open the door to modern genetics
the different forms of a gene that decide a characteristic are known as...
alleles
phenotypes
albinism
genes
which one of the following is the name of the way cells divide in asexual reproduction
twins
mitiois
meiosis
homologous
this diagram is used to trace a trait through generations of a family
pedigree
meiosis
generation square
ur mom
Sex-linked disorders are caused by males having...
only X chromosomes
two Y chromosomes
two X chromosomes
one X and one Y chromosomes
when there is incomplete dominance,
one allele has more influence than the others
each allele has its own degree of influence
the alleles have no influence
there are no alleles present
what kind of plant produces offspring with the same trait as the parent
self-pollinating
cross-pollination
true-breeding
nonbreeding
what do you call one set of instructions for an inherited trait
alleles
phenotype
albinism
genes
offspring that are different from both parents are produced by
asexual reproduction
something going wrong
sexual reproduction
mitosis
what is heredity
traits passing from offspring to parents
traits passing from parents to offspring
plants that are cross-pollinated
that ratio of dominate to recessive traits
what is Mendel's ratio for dominant to recessive traits
1 to 1
2 to 1
3 to 1
4 to 1
what is a phenotype
the way an organism feels
a group of 5 alleles
a dominant gene
the way an organism looks
what is it called when cells are copied with half the number of chromosomes
sex cells
meiosis
nucleus
mitosis
when one trait is not completely dominate over another
phenotype
genotype
incomplete dominance
Punnett square
probability
a way to organize possible offspring combinations
phenotype
genotype
incomplete dominance
probability
Punnett Square
an organism's appearance
pheotype
genotype
incomplete dominance
Punnett square
proability
the entire genetic makeup of an organism
phenotype
genotype
incomplete dominance
punnett square
probability
the mathematical chance that something will happen
phenotype
genotype
compliment dominance
punnett square
probability
when each allele has its own degree of dominance
self-pollinating
incomplete dominance
sex cells
true-breeding plants
when all offspring that have same traits as parent
self-pollinating
incomplete dominance
sex cells
true-breeding plants
made during meiosis
self-pollinating
incomplete dominance
sex cells
true-breeding plants
a plant that fertilizes itself
self-pollinating
incomplete dominance
sex cells
true-breeding plants
trait doesn't appear in each generation
recessive
dominant
always in generation 1
recessive
dominant
happens when parents with different traits are breed
recessive
dominate
