Unit 3: Cell Reproduction

Question 1

• making copies (identical copies), biologically, it is producing offspring that may or may not be exact copies of parents.

Answer 1

Reproduction

Question 2

• organisms make exact copies of themselves (Binary Fission and Mitosis)

Answer 2

Asexual Reproduction

Question 3

• organism make similar copies of themselves (MEIOSIS)

Answer 3

Sexual Reproduction

Question 4

a binary fission (much simpler in their organization than in eukaryotes)

Answer 4

Prokaryotic Fission

Question 5

• body cells (skin and stomach): non-reproductive cells/vegetative; a cell whose genes cannot be passed to the next generation

Answer 5

Somatic cell

Question 6

• reproductive cells (sperm and egg cells), a cell whose genes can be passed to the next generation.

Answer 6

Sex cell

Question 7

• a process of growth, development, and reproduction by a typical cell.

Answer 7

Cell Cycle

Question 8

• it is where cell spends more of their life before cell division and cytokinesis.

Answer 8

nterphase

Question 9

• it is where cells grow and make proteins, and the preparation for DNA synthesis.

Answer 9

G1 Phase

Question 10

• it is where the replication of DNA happens.

Answer 10

S Phase

Question 11

• helps separate the DNA during mitotic phase.

Answer 11

Centrosome

Question 12

• the cell grows more

Answer 12

G2 Phase

Question 13

division of somatic cells

Answer 13

Mitosis

Question 14

division of sex cells.

Answer 14

Meiosis

Question 15

• network of filaments that extend inward from the poles of a dividing cell.

Answer 15

Spindle fibers

Question 16

• constricted region of the chromosome, to which the spindle fiber is attached during mitosis.

Answer 16

Centromere

Question 17

• consist of the DNA and condenses to form chromosomes during cell division.

Answer 17

Chromatin

Question 18

• either of the two daughter strands of a replicated chromosome that are joined by the chromosome.
• made up of chromatin.

Answer 18

Chromatid

Question 19

• thread-like bodies containing the DNA during cell division.
• made up of chromatid.

Answer 19

Chromosomes

Question 20

• Chromatin fibers become tightly coiled condensing into discrete chromosome

Answer 20

Prophase

Question 21

An imaginary line that is equidistant from the two poles.

Answer 21

Metaphase plate

Question 22

• Centromeres divide.

Answer 22

Anaphase

Question 23

• Two nuclei form in the cell

Answer 23

Telophase

Question 24

• Division of cytoplasm

Answer 24

Cytokinesis

Question 25

- DNA replicates - Centriole pairs replicate - Nucleus and nucleolus visible

Answer 25

Interphase

Question 26

- Longest and most complex phase (90%)

Answer 26

Prophase I

Question 27

- Chromosome become to condense and visible

Answer 27

Leptotene

Question 28

Pairing of homologous chromosomes

Answer 28

Zygotene

Question 29

point of attachment between chromatids belonging to homologous

Answer 29

Pachytene

Answer 30

Diplotene