VOTING AND TENDER AGREEMENT by and among INVITROGEN CORPORATION and SIDNEY R. KNAFEL, DOUGLAS R. KNAFEL 1978 TRUST, ANDREW G. KNAFEL 1978 TRUST, DOUGLAS R. AND ANDREW G. KNAFEL 1976 TRUST, DOUGLAS R. KNAFEL 1983 TRUST, ANDREW G. KNAFEL, KNAFEL FAMILY...