
PCR SPEKTRO DAN FLOW CYTOMETRY
Authored by Juwita Raditya Ningsih
Health Sciences
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa prinsip dasar dari PCR (Polymerase Chain Reaction)?
Mengukur absorbansi cahaya oleh molekul
Menggandakan fragmen DNA target secara in vitro
Mengukur aktivitas enzim dalam sel
Memisahkan sel berdasarkan ukuran dan kepadatan
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Tahapan “annealing” dalam PCR berfungsi untuk:
Denaturasi DNA ganda menjadi tunggal
Sintesis DNA oleh DNA polymerase
Penempelan primer pada DNA cetakan
Visualisasi hasil amplifikasi DNA
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Kelebihan utama PCR dibanding metode lain adalah:
Dapat mendeteksi sel hidup dan mati sekaligus
Cepat dan sangat sensitif terhadap DNA target
Tidak memerlukan enzim khusus
Menghasilkan data hanya berupa konsentrasi molekul
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Prinsip dasar spektrofotometri adalah:
Pengukuran absorbansi cahaya oleh sampel pada panjang gelombang tertentu
Pemisahan sel berdasarkan muatan listrik
Amplifikasi DNA menggunakan primer spesifik
Analisis ekspresi gen dalam jaringan
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Spektrofotometri sering digunakan untuk mengukur:
Konsentrasi DNA atau protein dalam larutan
Jumlah antibodi yang berikatan dengan antigen
Jumlah sel per satuan volume darah
Aktivitas PCR pada setiap siklus
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Keterbatasan spektrofotometri adalah:
Perlu thermal cycler khusus
Tidak spesifik, hasil dapat dipengaruhi oleh kontaminan
Tidak dapat digunakan pada protein
Hanya dapat menganalisis sel hidup
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Flow cytometry bekerja berdasarkan prinsip:
Analisis absorbansi cahaya larutan DNA
Pemisahan sel dalam aliran fluida dengan deteksi cahaya
Penggandaan DNA dengan enzim polimerase
Pewarnaan kromogenik pada jaringan
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