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WorksheetsBio Review Pt 3 Mitosis and DNA
Total questions: 17
Worksheet time: 9mins
Which statement best explains how the cell cycle is important to the life cycle of the frog?
It enables frogs to produce tadpoles that are clones
It allows frogs to grow, develop, and reproduce
It prevents overproduction of frog offspring
It ensures the best adapted frogs survive and pass on traits to offspring
Which statement best describes why a cell spends the majority of its time in interphase?
The cell is growing and carrying out processes such as metabolism and DNA replication
The cell is aging and processes are stopping as lysosomes clear dead cell matter away
The cell needs time to synthesize fibers to complete mitosis
The cell needs time to complete cytokinesis
The activities in the cell cycle occur during specific phases. In which phase of the cell cycle is DNA replicated?
Mitosis
G1 phase
G2 phase
S phase
What do the two arrows represent?
Arrow 1 represents prophase, and Arrow 2 represents interphase
Arrow 1 represents mitosis, and Arrow 2 represents meiosis
Arrow 1 represents interphase, and Arrow 2 represents mitosis
Arrow 1 represents meiosis, and Arrow 2 represents prophase
Which of the following best explains why cells that contain the same genetic material do not develop into the same types of cells?
Because internal or external stimuli can trigger the activation of specific genes in the DNA of cells
Because random mutations can occur in the DNA of cells during early embryonic development
Because messenger RNA is converted to transfer RNA when cell differentiation begins
Because chemical signals that are released during the cell cycle can result in the linking of similar genes
Which of these identifies the part of the DNA segment labeled X?
Nucleotide
Phosphate group
Hydrogen bond
Deoxyribose
In Texas Longhorn cattle, coat coloration is an inherited trait. What is the genetic basis of coat-color variation in Texas Longhorn cattle?
Differences in the nucleotide sequences of genes
Differences in the number of chromosomes in cells
Differences in the diets of individual cattle
Differences in the environmental conditions of different geographic areas
A segment of a DNA strand is:
3' AGGTCAGGT 5'
Which of these is the correct complementary DNA strand for the segment shown?
5' AGGTCAGGT 3'
5' ACCUGAGGU 3'
5' TGGACTGGA 3'
5' TCCAGTCCA 3'
Students are given data from an investigation that identified some of the chemical elements present in four different samples. Which sample was most likely DNA?
Sample 1
Sample 2
Sample 3
Sample 4
Which part of a DNA molecule is responsible for the direct coding of specific traits in an organism?
The number of hydrogen bonds that hold the strands of DNA together
The number of carbons in the DNA molecule
The sequence of nucleotide bases in the DNA molecule
The sequences of phosphates along each DNA strand
Which property is shared by the cells of all living things?
The cells contain DNA composed of adenine, thymine, guanine, and cytosine
The cells are surrounded by a phospholipid bilayer and a cell wall made of cellulose
The cells have chromosomes that are located inside a membrane-bound nucleus
The cells rely on mitochondria to carry out aerobic cellular respiration
Human bone, muscle, and nerve cells all contain the same number of chromosomes with the same complement of genes. What enables these cells to perform specialized activities?
The ability of some cells to remove unnecessary DNA sequences
The regulation of gene expression within each cell type
The mutation of genes within each cell type due to radiation
The use of different methods of biotic cell division
Sections of DNA from two different organisms were analyzed to determine the relative percentage of each nucleotide present. If nucleotide W is GUANINE, what could be the correct identification of the other nucleotides?
X: cytosine, Y: adenine, Z: thymine
X: adenine, Y: cytosine, Z: uracil
X: thymine, Y: adenine, Z: cytosine
X: adenine, Y: uracil, Z: cytosine
Which statement best describes the importance of the cell cycles to the growth of organisms?
The cell cycle carefully regulates the growth and division of cells, helping organisms grow and heal properly.
The cell cycle determines which cells die and which cells continue to replicate repeatedly.
The cell cycle controls the types of nutrients that enter and leave the cell.
The cell cycle determines the sequencing in DNA, which regulates the order that proteins are created.
The diagram below shows a cell in different phases of mitosis. Which phase best represents ANAPHASE, in which spindle fibers are separating chromosomes to ensure that each new nucleus has one copy of each chromosome?
1
2
3
4
What component of DNA does the arrow at the top of the diagram label?
Deoxyribose sugar
Nitrogen base
Hydrogen bond
Phosphate group
An organism's DNA determines the traits that it will have. Which statement correctly explains how DNA determines the organism's traits?
The bases A, T, C, and G are always present in equal amounts, so each organism is unique
The bases A, T, C, and G are always in the same order in each organism, so each organism is unique
The bases A, T, C, and G in DNA are used in different sequences to encode an organism's traits
The sugar and phosphate groups that make up the backbone are used in different sequences to encode an organism's traits.
