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WorksheetsHIWGM-PHS
Total questions: 36
Worksheet time: 27mins
In the punnett square below, what belongs in the missing square
The process of "crossing over" occurs in what phase of meiosis?
anaphase 1
prophase 1
prophase 2
telophase 2
The diagram shows homologous chromosomes during prophase I of meiosis. Which of the following correctly describes the process being illustrated?
Segregation of sister chromatids
Mutation in which the DNA content of the gene is altered
Crossing over in which alleles are exchanged
Condensation and segregation of alleles
A version or variation of a gene
trait
gene
allele
DNA
The alleles that an organism has/inherits are its
genotype
phenotype
chromosome
recessive
The observable expression of a trait is its
phenotype
genotype
chromosome
allele
According to biologist , hereditary variations are due to what?
lack of organs
Inherited traits
a need for adapting to an environment
Genetic changes that result from possible mutation and recombination.
A karyotype is:
A tool scientists use to analyze chromosomes
A tool scientists use to predict the potential genotypes / phenotypes of offspring
A tool scientist use to identify genes in the human genome
A tool scientists use to identify criminals & find relatives
XX
Female
Male
XY
Female
Male
SELECT ALL THAT APPLY:
Male
Female
No chromosomal abnormalities
Trisomy 21
If an organisms diploid number is 16, its haploid number is
12
24
8
4
What goes in box 3
Aabb
AABB
AAbb
aaBb
A normal human zygote has (a) total chromosomes after fertilization
What type of inheritance pattern is shown here?
Codominance
Incomplete dominance
Which of the following statements describes the parental genotypes that would result in this punnett square ?
Both parents are hetorzygous
One parent is homozygous recessive and the other heterozygoues
Both parents are homozygous
One parent is better than the other
Which of the following best explains why meiosis results in greater genetic diversity than mitosis
After meiosis , daughter cells are diploid and have 2x as much genetic material
After meiosis , haploid daughter cells are fertilized , which doubles their number of chromosomes
During meiosis , chromosomes assort themselves independently.
During meiosis , more daughter cells are produced.
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
9/16
3/16
1/16
16/16
Mendel's idea that pairs of characters separate during gamete formation is called the Law of what??
Inheritance
Dominance
Segregation
Independent Assortment
Corn can be genetically engineering by adding genes from bacteria to be injected into the genetic material of corn . What is one risk of genetically engineering corn plants??
Decrease the amount of pesticide needed to grow corn
Increases storage time of corn so it won't rot
Adding a trait to the corn could cause possible allergies.
The number of corn plants a farmer can grow will be decreased.
According to the Punnett Square, what is the probability of an offspring being white?
A diploid cell that enters meiosis w/ 16 chromosomes will pass through___ cell divisions . Producing __ daughter cells, each with __ chromosomes?
2,4,8
1,4,8
3,4,8
12.16.18
Which of the follwing best describes the result of a mutation in a organisms DNA?
The mutation may cause phenotypic changes
Mutation will create a new organism
Mutations produce Avengers and X-men
Mutations cause cells to die.
A segment of DNA that codes for a trait
gene
allele
chromosome
chromatid
During egg production in a human female , the 21st pair of chromosomes may fail to seperate. THis failure to separate is known as
Crossing over
Polyploidy
Gene Mutations
Nondisjuntion
What is transformation?
The use of viruses to transform or genetically engineer cells.
The measure of how well cells are transformed in a new phenotype.
The insertion of a plasmid with a foreign gene into a bacterial cell which results in new acquired traits.
Genetic engineering or transformation of mammalian cells.
