reproduction/dna

Question 1

Asexual reproduction: binary fission

Answer 1

involves bacteria cells, the chromosome binds to the plasma membrane where it replicates, as the cell grows it pinches in two =2 identical cells

Question 2

Sexual Reproduction

Answer 2

2 cells contribute genetic material =greater variation

Question 3

Meiosis

Answer 3

process that determines how reproductive cells divide in a sexually reproducing organism; meiosis 1 and meiosis 2 result in 4 daughter cells that contain half as many chromosomes as the parent

Question 4

Interphase

Answer 4

before meiosis, chromosomes are duplicated and the cell prepares for division

Question 5

For every trait expressed in a sexually reproducing organism, theres at least ___

Answer 5

2 alleles

Question 6

Allele

Answer 6

alternative versions of a gene

Question 7

Genotype

Answer 7

combination of alleles

Question 8

Phenotype

Answer 8

what traits will be expressed

Question 9

Punnett square

Answer 9

Predicts genotype and phenotype

Question 10

DNA bases form a

Answer 10

hydrogen bonds with other bases on the complementary strand

Question 11

Transcription

Answer 11

An RNA strans complementary to to the original DNA strand is produced (mRNA)

Question 12

mRNA

Answer 12

functions as the messenger from the original DNA helix in the nucleus to the ribosomes in the cytosol or on the rough ER

Question 13

Ribosome as site of translation

Answer 13

mRNA slides through ribosome

Question 14

tRNA

Answer 14

carries anticodon, binds to ribosome when its codon is sliding through the ribosome

Question 15

Chain ends when

Answer 15

it reaches the stop codon, its then released into the cytoplasm and the protein folds onto itself to form complete conformation