How much will my senior year grades count towards my admission chances?

[iamphamtastic]

<p>I have maintained a 4.5 academic weighted GPA throughout high school and I have plenty of extracurriculars:
-Varsity Tennis
-Key Club board member
-OCAD
-International Baccalaureate
-I started a dance club
-ACT club board member (Club meant to help tutor at risk students)</p>

<p>However, my grades have plummeted my first semester of senior year.
IB English HL - B
IB Hist of Americas - B
AP Chemistry - C
AP Psychology - A
Math SL - B</p>

<p>How much will this affect my admission chances for the UCs I applied to?
-Cal Berkeley
-UCLA
-UCSD
-UCI
-UCD
-UCSB</p>

[drac313]

<p>Colleges look at usually the first semester/marking period of your senior year. The C and multiple B’s will affect your chances adversely, but the amount they do is unknown. I think Berkeley chances will be affected most by this though.</p>