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ScienceCh.3

Cell Processes

QuestionAnswer
DNA: T- G- DNA: A-T C-G
RNA: A- C- RNA: A-T C-G
What structure contains the instructions for making a specific protein? gene
What makes up the ladder of a DNA molecule? phosphate
Messenger RNA match with 3 nitrogen bases on the tRNA
ribosomal RNA make up ribosomes
transfer RNA bring amino acids to ribosomes
How many cells are formed at the end of mitosis I? 2
Meiosis I is the same as...? Mitosis
Meiosis I begins with 1 cell. How many cells are formed by the end of Meiosis II? 4
a cell w/ pairs of chromosomes...? diploid
cell w/ a single set of chromosomes...? haploid
centromeres divide in...? anaphase II
How are sex cells different from other cells? Sex cells have half the chromosomes
In fertilization...? a zygote is formed after joining the egg and sperm
mitosis is a form of...? asexual reproduction
skin cells always... need to be replaced (undergo mitosis)
3 types of asexual reproduction... -budding -regeneration -fission
Cell Division # of cells and caused many celled organisms to grow
interphase most of the life of any eukaryotic cell is spent in this period of growth
mitosis nucleus divides to form 2 identical nuclei
chromosomes structive nucleous that has hereditary material
metaphase chromosomes line up in the center
anaphase centromeres divide
telephase spindle fibers and a new nucleos appear
sexual reproduction egg and sperm come together
sperm formed in the male reproductive system
egg formed in the female reproductive system
fertilization joining of the egg and sperm
zygote cell that forms from fertilization
diploid ccell that have similiar chromosomes
haploid single
meioisis produces haploid sex cells
DNA deoxyribonucleic acid
mutations any permament change in the dna sequence of a gene or chromosomes of a cell
Created by: 100000149945496
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