Cell Divison

Question 1

What is the smallest unit of life?

Answer 1

cell

Question 2

what is the biggest organelle of a eukaryotic cell?

Answer 2

a nucleus

Question 3

what is found in the nucleus?

Answer 3

DNA

Question 4

what is DNA and what does it stand for?

Answer 4

DNA contains genetic material and it stands for DEOXY RIBO NUCLEIC ACID

Question 5

what does DNA look like inside a nucleus?

Answer 5

DNA looks like a double stranded of ladder and jumbled up like a ball of yarn

Question 6

what genetic material?

Answer 6

genetic material are genes or traits that can be passed on from parents to offspring

Question 7

how does DNA grow and develop and reproduce?

Answer 7

DNA reproduce through stages called INTER PHASE AND MITOSIS

Question 8

what happens during INTER PHASE?

Answer 8

INTER PHASE is when DNA develops and goes through replication

Question 9

what does REPLICATION mean?

Answer 9

copy or duplicate

Question 10

what happens during replication?

Answer 10

DNA replicates itself and wrap up tightly and neatly into chromatid

Question 11

what is chromatid?

Answer 11

a DNA that is neatly wrapped up(TWO CHROMATIN/singular:chromatids

Question 12

what is a chromosome?

Answer 12

when DNA wraps around a protein,it is called a chromosome

Question 13

how many chromosomes do humans have?

Answer 13

humans have 46 chromosomes

Question 14

how many chromosomes does each parent pass on to their offspring?

Answer 14

23 chromosomes from each parent

Question 15

each segment of DNA is know as a what?

Answer 15

gene

Question 16

what does a gene contain?

Answer 16

genetic traits

Question 17

what happens during MITOSIS?

Answer 17

during g MITOSIS chromosomes go through 5 phases

Question 18

what are the 5 phases?

Answer 18

ph1: protophase ph2:metaphase ph3: anaphase ph4: telophase ph5: cytokinesis

Question 19

what happens during phase 1?

Answer 19

phase 1 prophase-chromosomes appear

Question 20

what happens during phase 2?

Answer 20

phase 2: Metaphase-cromosomes line up

Question 21

what happens during phase 3?

Answer 21

phase 3: anaphase-chromosomes

Question 22

what happens during phase 4?

Answer 22

phase 4: telophase-chromosomes pinch

Question 23

what happens during phase 5?

Answer 23

phase 5: cytokinesis-two new daughter cell form

Question 24

how many chromosomes do human sex cells have?

Answer 24

23 chromosomes in each sex cell (egg or sperm)

Question 25

how many chromosomes do human body cells have?

Answer 25

46 chromosomes in each cells

Question 26

what do you call a cell with a full set of chromosomes (46)?

Answer 26

a diploid cell

Question 27

what do you call a cell with half set chromosomes (23)?

Answer 27

a hiploid

Question 28

do bacteria cells go through mitosis like the eukaryotic cells?

Answer 28

no,bacteria do not have nucleus

Question 29

how do bacteria cells divide?

Answer 29

bacteria cells split in half called binary fission

Question 30

why do our body cells divide?

Answer 30

our body cells divide to replace dead cells,to grow,to develop

Question 31

what is the name of the DNA backbone called?

Answer 31

sugar phosphate

Question 32

name all 4 of the DNA backbone celled?

Answer 32

guanine,cytosine,thymine, adenine

Question 33

what DNA base pairs with thymine?and guanine?

Answer 33

guanine=cytosine thymine=adenine