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

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.  

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

i hope this you