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Identification and Taxonomy of Actinomycetes

Authored by Bungonsiri Intra

Biology

University

Used 4+ times

Identification and Taxonomy of Actinomycetes
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define the characteristic of actinomycete bacteria

Actinomycete bacteria are unicellular and primarily found in water.
Actinomycete bacteria are anaerobic and do not produce antibiotics.
Actinomycete bacteria are primarily gram-negative and harmful to plants.
Actinomycete bacteria are filamentous, gram-positive, and important for soil ecology and antibiotic production.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

List common environments in which these microbes can be found

Outer space
Mountains
Deserts

All are correct.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Describe the methodologies to classify these microbes

Physical and chemical properties
Historical and geographical classification
Morphological, biochemical, genetic, and ecological classification.
Cultural and environmental factors

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Average nucleotide identity (ANI) / digital DNA-DNA Hybridization (DDH)

ANI and DDH are methods for measuring genetic similarity between organisms.
ANI and DDH are techniques for studying metabolic pathways.
DDH is a method for analyzing RNA sequences.
ANI is used for measuring protein structure similarity.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ข้อใดไม่ใช่คุณสมบัติที่บ่งบอกว่าเชื้อ actinomycetes ถูกจัดเป็นในกลุ่มแบคทีเรีย ไม่ใช่เชื้อรา

Ribosome 70S

Cell wall มี peptidoglycan

Cell wall มี Chitin

Filamentous ขนาด น้อยกว่า 2 ไมโครเมตร

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ค่า cutoff ที่นิยมใช้ในการบ่งชี้ว่าจีโนมของสองสายพันธุ์อยู่ในชนิดเดียวกันคือข้อใด

ANI ≥ 90%

ANI ≥ 95–96%

16S rRNA similarity ≥ 90%

dDDH ≥ 50%

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ข้อใด ไม่ใช่ ลักษณะทางสัณฐานวิทยาที่ใช้ใน phenotypic analysis  

สี aerial mycelium

รูปร่างสปอร์และผิวสปอร์

ค่า G+C content ของจีโนม

สี pigment ที่เกิดใน medium

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