Natural Selection Pix!!!!

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Natural Selection

Triplett Natural Selection is where animals reproduce with more genetically stable animals so that their offspring will be able to adapt and survive more easily. In the wild, animal traits are shaped not by human choices, but by natural forces. Charles Darwin called this process natural selection. Millions of years of natural selection have led to a range of canines adapted for survival in many diverse habitats. Today 35 species of wild canines can be found from the tropics to the tundra. Wild canines make their homes in a wide variety of habitats. From the hottest deserts to the icy arctic, the structure and behavior of each wild canine has been modified by natural selection so that it is well suited for survival. The fennec fox makes its home in the desert. Pale fur reflects the sun's rays, and extends over the soles of its paws to protect against burning desert sands. When fennec foxes overheat, they shunt or send blood to their large ears to rapidly dump the excess body heat into the environment. Not many wild canines can survive the frigid temperatures of the arctic. The arctic fox is the only year-round small canine resident of this harsh environment. Its fur goes from white in winter to brown-gray in summer, keeping in line with the seasonal change from white snow cover to brown tundra. To keep warm, it has thick fur that even covers the soles of its feet and tiny ears to reduce heat loss when the temperature dips far below zero.The gray fox has a unique adaptation for life in the forest. In addition to small body size and short legs that make it easy to move through the underbrush, the gray fox is the only climbing canine. Using its somewhat curved claws, it scampers up trees to avoid predators as well as to forage for food such birds or their eggs. But then there is the coyote that can adapt in any environment except the arctic. So not every canine has the same niche but can all survive in defferent habitats.

Mutation

MY NAME IS ERICA AND I'M A JUNIOR AT OLATHE NORTH. I'VE LIVED IN OLATHE FOR 4 YEARS, BEFORE THAT I WAS IN TEXAS. I WORK AT MCDONALDS AND I LOVE MY BEST FRIENDS FEATHER WITH AN H AND LISA. AND THIS IS MY STUDENT NAT. PROJECT





A MUTATION IS A PERMANTENT CHANGE IN THE DNA SEQUENCE OF A GENE.


KINDS OF MUTATION
*POINT MUTATION
*FRAME-SHIFT MUTATION
*DELETION MUTATION
*INSERTION MUTATION
*DNA EXPRESSION MUTATION

POINT MUTATION
A SIMPLE CHANGE IN THE BASE OF THE GENE.

EXAMPLES:
ORIGINAL MUTATION: THE FAT CAT ATE THE WEE RAT.

POINT MUTATION: THE FAT HAT ATE THE WEE RAT.

FRAME-SHIFT MUTATION
ONE OR MORE BASES ARE PUT IN OR TAKEN OUT, THE SAME AS ADDING OR REMOVING LETTERS IN A SENTENCE
EXAMPLES:
ORIGINAL:THE FAT CAT ATE THE WEE RAT.

POINT MUTATION: THE FAT CAA TET HEW EER AT.


DELETION MUTATION
MUTATIONS THAT HAVE MISSING DNA
EXAMPLES:
ORIGINAL:THE FAT CAT ATE THE WEE RAT.

DELETION MUTATION:THE FAT ATE THE WEE RAT

INSERTION MUTATION
ADDING EXTRA DNA
EXAMPLES:
ORIGINAL:THE FAT CAT ATE THE WEE RAT.

INSERTION MUTATION:THE FAT CAT XLW ATE THE WEE RAT

INVERSION MUTATION
AN PART OF DNA IS BACKWARDS
EXAMPLES:
ORIGINAL:THE FAT CAT ATE THE WEE RAT

INVERSION MUTATION:THE FAT TAR EEW EHT ETA TAC

DNA EXPRESSION MUTATION:
TYPES OF CHANGES IN DNA CAN RESULT IN PROTEINS BEING MADE AT THE WRONG TIME OR IN THE WRONG CELL TYPE.