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which of the following is true?
A) DNA is transcribed into mRNA in the cytoplasm
B) both RNA and DNA are doubled stranded
C) some mutations occur during DNA replication may be harmful
D) during DNA replication the new strand of DNA is synthesized by DNA helicases
c?
Determine the anticodon of the tRNA that carries the third amino acid, given the following strand TACCGATAATTC:
A). AUU
B). ATT
C). UAA
D). AUG
D?
writing an exam just want to know if this is right.
The DNA of the organism Z is made of 20% thymine bases, what percentage of its bases is guanine?
a) 20%
b) 30%
c) 40%
d) 60%
a or c?
100-20=80/2=40
or 60-20=40/2=20
so which one is it? please let me know if my answers are correct as i have stated already that i am wiring a test right now. thanks.
A pre-mRNA must be processed to produce the final mRNA product of a gene-which of the following is NOT a normal processing step?
a)Splicing out of any introns
b)Addition of a ribosome binding site
c)Addition of a 5' cap
d)Addition of a 3' poly(A) tail
Explain why the deficiency in mobile nutrients can be observed in older leaves while deficiency in immobile nutrients can be observed in the younger leaves.
A breed of domestic rabbits can have brown, silver or white fur. These colours are produced by two alleles C^s and C^w. Draw a complete genetic diagram to predict the ratio of offspring produced by a cross with a silver of Brown rabbits
How do the different types of mutations affect the amino acid sequence of a polypeptide?
What substance has amylase present but not starch?
why some kids in a family might have albinism and others might not?
The answer should be 8-10 sentences and must include the following words:
DNA
gene
protein
melanin
mutation
chromosome
meiosis
crossing over
dominant
recessive
heterozygous
homozygous recessive
I am looking at studying depolarization in catfish, using a cell culture I hope to measure this using muscle cells taken from the swimming muscle. I am also looking into the effect of a cholinergic crisis on depolarization. My question is, would I be able to sustain these cells under a cholinergic crisis, if I provided the necessary nutrients (Could this be explained if not)? If not, what causes damage to the depolarization function of the muscle cell during this crisis?
Many thanks
during asexual reproduction of a cnidaria polyp, its body breaks apart, or strobilates, into tiny free swimming, immature organisms. which of the following best describes these new individuals?
asparate + NAD+ ---> NADH + ___.
