A part of an mRNA has the base sequence GCA. Which change to this sequence would indicate a missense mutation?
Phe UCC
CAC)
Messenger
Second base in codon
RNA Codons U
A
G
UUU UCU UAU
UGU
UUC
UAC
Tyr
UGC
Cys
Ser
UUA UCA
Leu
UAA Stop UGA Stop A
UUG
UCG UAG Stop UGG Trp G
CUU CCU CAU
U
CGU
CUC |ССС
His
CGC
с
Leu
Pro
CUA ССА ICAAT
Arg
Gin
CGA
CUG CCG
CGG
AUU ACU AAU AGU
Asn
AUC
U
Ser
Ile ACC
AAC) AGC
Thr
С
AUA ACA
АЛА
A
AGA
AUGACG
Lys
Arg
AAG) AGG)
G
GUU
GAUL
GGU
Asp
GUC
U
GCC GAC GGC
G
Val
GUA GCA
Ala
GAA
Gly
GGA
Glu
GUG GCG GAG GGG
G
GCA
First base in codon
CAG
Third base in codon
GCU
Blocosoco
A. GAA
B. GCU
C. GCC
D. GCG

Alichen is an organism that structurally appears to be a single organism. but a lichen is actually two different organisms—a fungus and green algae—living together as one organism. the fungal partner derives its nutrition from the photosynthesizing algae. how does a lichen differ in its photosynthetic activity from elysia chlorotica, the sea slug that’s considered to be a photosynthesizing animal? a. in lichens, the fungi photosynthesize on their own, while elysia chlorotica forms a relationship with a photosynthesizing plant. b. in lichens, the relationship with the algae lasts throughout the life cycle, but in elysia chlorotica, the relationship occurs only during the immature juvenile stage of the slug’s life cycle. c. lichens can photosynthesize only because of the living algal partner, while elysia chlorotica incorporates chloroplasts from algae into its cells. d. in lichens, the association between the fungi and algae is permanent, while elysia chlorotica associates with a photosynthesizing organism only when it requires food.

The energy needs of a human population are not affected by

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings