Worksheets8.5 Inheritance and Genetic Variation
Total questions: 16
Worksheet time: 20mins
What will two homozygous-dominant parents (BB and BB) produce for offspring?
All offspring will be genotype bb.
All offspring will be genotype Bb.
All offspring will be genotype BB.
It is impossible to predict what the genotypes of the offspring will be.
Different versions of a gene
Chromosome
Variation
Alleles
Asexual reproduction
Two red flowers produce a white flower as an offspring. Which of the following best explains how this is possible?
The parents were heterozygous, and the white flower is the expression of the recessive alleles.
It is a mistake.
White flowers are an adaptation to help with survival.
A mutation occurred.
Chromosome
A single, highly organized and structured piece of DNA
Different forms or versions of something
The reproductive process in which a single cell makes a copy of itself
Different versions of a gene
Inherited trait
A characteristic that is passed from parent to offspring
Different versions of a gene
A single, highly organized and structured piece of DNA
The reproductive process involving two parents whose genetic material is combined to produce a new organism different from themselves
Why does sexual reproduction produce diverse offspring?
The offspring are spores.
The offspring all grow at different rates.
The cells of the offspring lack DNA.
The offspring have a unique combination of DNA from its parents.
Different forms or versions of something
Inherited trait
Asexual reproduction
Chromosome
Variation
Offspring resulting from asexual reproduction are always –
Genetically diverse
Flowering plants
Genetically uniform
Sterile
Asexual reproduction
A single, highly organized and structured piece of DNA
A characteristic that is passed from parent to offspring
Different versions of a gene
The reproductive process in which a single cell makes a copy of itself
When someone says that a daughter looks just like her mother, is it possible that the daughter is an exact copy of her mother?
No, because a daughter receives half of her genetic make up from her father.
Yes, because a daughter gets alleles from her mother.
No, because a daughter gets all of her alleles from her father.
Yes, because humans can practice asexual reproduction under certain circumstances.
The reproductive process involving two parents whose genetic material is combined to produce a new organism different from themselves
Chromosome
Inherited trait
Sexual reproduction
Variation
A Punnett square showing the cross between two pea plants is shown. In pea plants, the smooth coat allele (R) is dominant over the wrinkled coat allele (r).
(See Attached Diagram)
One part of the Punnett square is filled in, but the remainder is blank. Which of the following best describes the correct method for filling in the remainder of the squares? (Rr = top right, rR = bottom left)
Two brown-eyed parents can produce a child with blue eyes. Which of the following best explains how this is possible?
Blue eyes are an adaptation that can help the survival of humans.
Over many generations some characteristics become more frequent.
Eye color is always a mixture of the traits of both parents.
The genes passed on by the parents can combine in a new way in the child.
A complete Punnett square here shows a cross between two mice with different fur color, agouti (A) and black (a).
(See Attached Diagram)
This Punnett square can be used to make which of the following conclusions?
Two agouti mice can’t produce offspring with black fur.
Eventually, all the mice that descend from this pair will have black fur.
The trait of agouti fur is an advantage to mice for avoiding predators.
The trait of agouti fur is dominant over the trait of black fur.
Any individual offspring produced through asexual reproduction is always–
genetically identical to its parent.
made up of cells with a cell wall.
different from all of its siblings.
very slow to develop and grow.
The offspring of sexually reproducing organisms can be distinguished from the offspring of asexually reproducing organisms by studying which of the following?
The average amount of time involved between fertilization and birth of the offspring
The relative sizes in height of the organisms when they reach adulthood
The extent of variety in the genetic information in the population of offspring
The diet and habitat requirements for each individual organism
