NEW
Font size
WorksheetsBracket #2: Genetic Information in Cells & Genetics
Total questions: 16
Worksheet time: 12mins
Humans use ________ to pass on desired phenotypic traits to the next generation of organisms.
natural breeding
selective breeding
selective insemination
artificial fertilization
DNA fingerprinting would most likely be used to
identify human age and lifespan.
determine genetic relationships.
diagnose different types of cancer.
create genetically-identical species.
A farmer cut a branch from his favorite, mature fruit tree, planted it in the soil, and it grew to be a new tree. The farmer's method of growing a new plant is a type of
pollination.
seed production.
sexual reproduction.
asexual reproduction.
If a portion of a DNA strand has the base sequence ACGACG, what will be the base sequence of the mRNA strand transcribed?
TCGACG
TGCTGC
UCGACG
UGCUGC
What type of biomolecule is being produced at the ribosome?
lipid
protein
carbohydrate
nucleic acid
What is one distinct DISADVANTAGE of sexual reproduction?
Organisms that sexually reproduce do not produce much genetic variety.
Sexual reproduction, unlike asexual reproduction, can rapidly produce too many new offspring.
Sexual reproduction requires two individuals, which may be difficult for endangered or uncommon species of organisms.
Sexual reproduction produces offspring that are all equally vulnerable to the same diseases, predators, and other environmental pressures.
Based on the information in the pedigree chart, all of the statements are true EXCEPT
if the disease is sex-linked, it is recessive.
men inherit the disease more frequently than women.
males can be carriers of the disease by inheriting only one allele for the disease.
females can be carriers of the disease by inheriting only one allele for the disease.
According to Mendel’s law of dominance, we would expect _________ percent of the offspring to have white flowers.
0
25
50
100
If the RNA molecule in a human has the nucleotide sequence of GUU, this would indicate that the amino acid valine would be needed to make the protein. How would this change if this process was occurring in a mushroom?
there would be no change; GUU always codes for valine
valine is not an amino acid found in any organism besides humans
mushrooms do not need to make proteins so this process would not occur
in a mushroom, GUU would actually code for an amino acid not found on the chart
Scientists use DNA sequencing to understand relationships among life on Earth. The chart illustrates differences between five species and humans. Although the DNA sequence of each may vary, what statement about all six organisms is true?
The DNA sequences may vary but the amino acid sequences are identical.
The nitrogen bases in the nucleotides must also be different in each.
The process in producing additional DNA, replication, is identical in all six.
The process of producing DNA, or replication, varies due to the differences in the DNA codes.
The arrows in the illustration are pointing to
homozygous alleles on homologous chromosomes.
homozygous alleles on homozygous chromosomes.
heterozygous alleles on homologous chromosomes.
heterozygous alleles on heterozygous chromosomes.
Which of these is a characteristic of sexual reproduction?
It takes place in all cells of the body.
It forms exact copies of the parent cell.
It results in offspring with genetic variation.
It requires only one parent to form a daughter cell.
Allen and Andrew have the same biological parents. Why do they not resemble either of their parents?
Each child receives only paternal genes.
Each child receives only maternal genes.
Each child receives only half of each parent’s genes.
Each child receives genes from only one of the parents.
The central dogma of molecular biology is an explanation of the flow of genetic information within a biological system. It is a framework for understanding the transfer of genetic information between sequential information-carrying biopolymers. It traces the one-way flow from the nucleus out to the cell proper and the ribosome. Which model BEST represents central dogma?
DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation. A DNA sample taken from a crime scene is compared with a DNA sample from a suspect. During a crime scene investigation, forensic technicians collected skin samples form under the fingernails of a murder victim. Using DNA evidence, police narrowed their search down to three suspects. Comment on the evidence.
Suspect #1 is a match to the DNA evidence found on the victim.
Suspect #2 is a match to the DNA evidence found on the victim.
Suspect #3 is a match to the DNA evidence found on the victim.
The evidence is not conclusive; the DNA could be the victim's.
The process of meiosis produces only gametes, eggs or sperm. According to the diagram, how many sperm are formed from each cell that undergoes meiosis?
1
2
3
4
