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The cell line HeLa was isolated from a

cancer cells

HeLa cells are

cervical cancer

Henrietta Lack died of

half the number of chromosomes than the parent cell carries

After meiosis, resulting daughter cells are likely to contain

sexual reproduction

Meiosis is the basis of

sperm and egg cells

Meiosis produces

the chromosome number stays the same

In mitosis,

the S stage

DNA is replicated during

G1, S, and G2

Which of the following represents the complete stages of interphase?

the G1 stage

The event directly before the beginning of DNA replication is


Cells with two of each kind of chromosome are described by the term


The spindle apparatus is made of


The spindle apparatus appears during

breakdown of the nuclear envelope

Which of the following occurs in prophase?


Chromosomes are aligned at the middle of the cell during

metaphase and anaphase (I & III)

In which of the following stages does each chromosome consist of two DNA molecules?


Sister chromatids detach from one another and become visibly separate chromosomes during


The chromosomes are moving to opposite sides of the cell during


Nuclear membranes re-forms during


In what phase of the cell cycle does a typical cell spend most of its life?


In what part of the cell cycle does an actively dividing cell produce the proteins necessary for mitosis?


In what part of the cell cycle are most of our body cells?


In which of the following part or parts of the life cycle are duplicated chromosomes NOT connected to each other?

a contractile ring and ATP molecules

Which of the following is (are) essential for cleavage during cell division in animal cells?


Which of the following organisms employs a cell plate in cell division

a cell plate partitions the cytoplasm

Which of the following is NOT an event in cell division in animals?

more than one of these is NOT an event of plant cell division

Which of the following is NOT an event of plant cell division?


An accumulation of cells that divide uncontrollably is known as


Abnormal cell division that does not pose a threat to surrounding tissues are termed


The spread of cancer cells from one site to others in the body is know as

a mutated gene that results in tumors

An oncogene is

normal genes that promote mitosis

Prot-oncogenes are

adhesion proteins

What is NOT functional in malignant neoplasms that is functional in benign neoplasms?

produces clones

Asexual reproduction

results in new combination of genetic traits

Sexual reproduction


Alternative or different forms of the same gene are called

less genetic diversity in offspring

Which of these is a disadvantage of asexual reproduction?

fit all of these descriptions

Homologous chromosomes

four haploid cells

Meiosis in a diploid organism typically results in the production of

prophase I

During which phase of meiosis will the chromosomes appear as a unit of four chromatids?

prophase I

The pairing of chromosomes and crossing over occur during

metaphase I

Paired homologous chromosomes are found at the center of the cell during

cytoplasmic division

Which of the following does NOT occur in prophase I of meiosis?

anaphase II

Sister chromatids are separated from each other during ____ of meiosis

it results in geneticc similarities

Which of the following is NOT true about crossing over of meiosis?f


The first cell of a new individual that is the result of sexual reproduction is a


In mitosis, if a parent cell has 12 chromosomes, each daughter cell will have how many chromosomes?


Which of the following is the proper sequence for mitosis?

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