Suppose all of the ribosomes in cell were destroyed. How would this most likely affect the process of gene expression?

The amino acids could not join to form a protein

The DNA double strand would be unable to separate

The cell would be unable to form mRNA strands

The tRNA molecules would bind to the wrong amino acids

A gene specifies a protein that is to be secreted by the cell. Which sequence traces the path of the protein through the cell?

rough ER - vesicle - Golgi apparatus - vesicle

Golgi apparatus - vesicle - rough ER - vesicle

smooth ER - rough ER - vesicle - Golgi apparatus

unbound ribosome - rough ER - vesicle - Golgi apparatus

Which statement best describes the stage of mitosis shown in the illustration?

The cell is in metaphase because the chromosomes are aligned in the center

The cell is in telophase because the chromosomes are unpaired

The cell is in anaphase because the chromosomes have replicated

The cell is in prophase because the chromosomes have condensed

Which is one difference between a parent cell and a daughter cell that results from mitosis?

The daughter cell has half the amount of genetic material as the parent cell

The daughter cell has sister chromatids, while the parent cell does not

The daughter cell has half the number of chromosomes as the parent cell

The daughter cell has paired chromosomes, while the parent cell does not

Which sentence lists events in the cell cycle in correct order, from earlier to later?

The chromosomes replicate; the nuclear membrane dissolves

The sister chromatids are separated; the chromosomes condense

The nuclear membrane reforms; the chromosomes align in the middle of the cell

The chromosomes become longer & thinner; spindle fibers attach to the centromeres

A cell in the process of cell division contains the normal chromosome number. Each chromosome consists of two identical sister chromatids. During which stages and processes can such a cell exist?

Prophase 1 of meiosis and Prophase of mitosis

Telophase of mitosis, but no stage of meiosis

Metaphase of mitosis but no stage of meiosis

Anaphase 1 of meiosis and anaphase of mitosis

The gene for seed shape in pea plants has two alleles, resulting in either smooth or wrinkled peas. A pea plant with one smooth allele and one wrinkled allele produces only smooth peas. Based on this information, which conclusion can be drawn?

The allele for wrinkled seeds is recessive

One allele is incompletely dominant

The allele for smooth seeds is recessive

Which of the following describes the parent's phenotypes?

The father has type B blood, and the mother has type A blood

The father has type O blood, and the mother has type B blood

The father has type O blood, and the mother has type A blood

The father has type B blood, and the mother has type AB blood

Which of the following correctly predicts their child's chance of inheriting a blood type?

The child has a 0% chance of inheriting the B blood type

The child has a 25% chance of inheriting the A blood type

The child has a 50% chance of inheriting the O blood type

The child has a 75% chance of inheriting the AB blood type

Fruit flies normally have red eyes. A recessive allele causes some fruit flies to have purple eyes. Which statement describes the purple-eyed offspring of a red-eyed parent and a purple-eyed parent?

The offspring has two chromosomes with a recessive allele present on each

The offspring has two recessive alleles located on the same chromosome

The offspring has one dominant and one recessive allele located on the same chromosome

The offspring has one chromosome with a dominant allele and one chromosome with a recessive allele

A mutation causes 6 nucleotides to be inserted at one location into the DNA that encodes a protein. How may the resulting protein be affected?

It may gain two amino acids or it may be shortened at the mutation site

It may gain two amino acids or it may lose two amino acids

It will have different amino acids starting at the mutation site

It will have two different amino acids but the same number of total amino acids

A full karyotype is an image of all the chromosomes present in a cell, while a partial karyotype shows only some of the chromosomes. The partial karyotype shown above is from an infant born with a rare disorder. Only chromosomes 10, 11, 12, 16, 17, and 18 are shown. Which event caused the disorder?

separation of sister chromatids

segregation of homologous chromosomes

Which is most likely an example of a genetically modified organism?

A bacterium that contains DNA from another bacterium

A blue violet that is grafted to an African violet

A hybrid dog crossbred from a pug and a beagle

A microorganism that develops resistance to an antibiotic

Gene therapy changes the DNA of a person with a genetic disease by introducing working genes into a cell nucleus. Which disorder would be the best target for gene therapy?

Hemophilia, which is caused by a gene on the X chromosome

Type II diabetes, which is influenced by diet & genetics

High Blood pressure, which is influenced by multiple genes

Lyme disease, which is caused by bacteria transmitted by ticks

A scientist uses enzymes to splice genetic DNA into a plasmid (a naturally occurring piece of circular DNA that is exchanged between bacterial cells). Then inserts the plasmid into a cell. Which of the following is most likely an application of this process?

Producing a vaccine against the human papillomavirus

Producing an exact genetic clone of a prized racehorse

Determining which of several rice varieties should be crossed

Determining whether a suspect's blood was present at a crime scene

A man with hemophilia and a woman who has no history of the disease in her family plan to have a child. What best describes the outcome of their children?

Any male child will be normal, any daughter would be a carrier

Any male child will have hemophilia, any daughter would be normal

Any male child will have hemophilia, any daughter would be a carrier

Any male child will be normal, any daughter would be normal

Which of the followings is not an example of a Non-Mendelian trait?

Heterozygous - one dominant & one recessive allele

Incomplete dominance - heterozygous is a blend of the dominant & recessive alleles

Co-dominance - both alleles express as dominant

Multiple Alleles - more than 2 alleles for a gene

Which of the following does not describe meiosis?

New cells have half the number of chromosomes

New cells are are genetically different than the parent cell

Keystone Biology Review - Module B

Authored by James Martin

Biology

9th - 12th Grade

NGSS covered

Used 285+ times

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58 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

One strand of DNA contains the base sequence ACGGTATCG. What base sequence does the complementary strand contain?

CTAAGCGTA

ACGGTATCG

TGCCATAGC

GCTATGGCA

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A DNA molecule is a long polymer chain made of

Nucleotides

Amino Acids

Fatty Acids

Glucose

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What monomer is pictured?

Fatty acid

Amino acid

Glucose

Nucleotide

A region of DNA that codes for a protein

Chromosome

Gene

Nucleotide

Codon

Process in which genetic information from DNA is copied to mRNA

Translation

Transcription

Cell Cycle

Cytokinesis

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is a difference between DNA & RNA?

Made of nucleotides

A polymer of nucleic acid

Made of a sugar, a nitrogen base, & a phosphate group

Made of one strand of nucleotides

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The process of synthesizing proteins from mRNA sequences

Transciption

Translation

Cytokinesis

Meiosis

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Keystone Biology Review - Module B

One strand of DNA contains the base sequence ACGGTATCG. What base sequence does the complementary strand contain?

A DNA molecule is a long polymer chain made of

What monomer is pictured?

A region of DNA that codes for a protein

Process in which genetic information from DNA is copied to mRNA

Which of the following is a difference between DNA & RNA?

The process of synthesizing proteins from mRNA sequences

Small structures made of rRNA and protein found in all cells. Site of protein synthesis.

A protein contains the following sequence of amino acids; leucine, serine, leucine, valine. What DNA sequence was used as a template for the mRNA coding for this sequence of amino acids?

A protein consists of one or more long chains of ________

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