Cell Cycle
What is asexual reproduction?
offspring from a single parent
What are chromosomes made out of?
protein and DNA
The three types of RNA are?
Messenger RNA (mRNA)
Ribosomal RNA(rRNA)
Transfer RNA(tRNA)
What is chloroplast?
where photosynthesis takes place
1. If the two copies are the same allele it's a?
2. If the two copies are different alleles it's a?
1. Homozygous
2. Heterozygous
What are 3 phases of interphase?
G1, S, and G2
What are the three parts to a nucleotide?
A sugar – deoxyribose
A phosphate
A nitrogenous base = adenine(A), cytosine(C), thymine(T), guanine(G)
What is transcription?
A copy of RNA is made from a gene in DNA
What does photosystem 2 make?
ATP
What is the geno type for GgTt?
GT,Gt,gT, adn gt
What is mitosis?
division of nucleus, followed by division of cytoplasm (cytokinesis)
What is thew four letter code in DNA?
ACGT
Where does the gene start and stop?
Start codon- AUG = amino acid methionine
Stop codon - UAG, UAA, UGA - where gene ends
What causes photorespiration?
When plants dry out, they close the stomata Co2 levels drop and O2 levels increase
What were the three reasons that mendel chose to study the pea plant?
Many traits to study
Easy to manipulate matings
Peas that produce the same offspring = truebreeders
What are the four main phases of Mitosis?
Prophase
Metaphase
Anaphase
Telophase
What does semi-conservative replication mean?
it means each contains one parental strand (old) and one daughter (new) strand
Any change in DNA is called a what?
mutation
What does the Calvin-Benson cycle or C3 cycle require?
Carbon dioxide
Ribulose bisphosphate(RuBP)
Rubisco - an enzyme,
ATP and NADPH(from light reactions)
What stage of meiosis does the law of segregation?
Anaphase
What is the differences in mitosis and meiosis?
mitosis has the same DNA, while meiosis does not
What is Ligase?
its the one going away is made of fragments that need to be stitched together by an enzyme
How many tRNA molecules can a ribosome hold?
2
What are the three steps in Calvin Cycle?
Carbon fixation
Synthesis of glyceraldehyde-3-phosphate(G3P)
Regeneration of RuBP
What is genetic recombination?
its crossing over between alleles