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HIGH SCHOOL

Biology

Science Experiments

Basic Biology

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Biology I: yeast, <em>Drosophila</em> and <em>C. elegans</em>

Why Fruit Flies Matter in Research

Description

Drosophila melanogaster, the fruit fly, is a widely used model organism in biological research. It has helped scientists make important contributions to biology for more than a century. The fruit fly is studied for its body features, life cycle, natural habitat, and diet.

Fruit flies are useful i...

Transcript

黑腹果蝇,又称果蝇,是一种在腐烂水果附近会经常看到的小昆虫。果蝇作为模式生物被广泛用于科学实验中,对它的研究可以帮助我们了解真核生物遗传学和人类疾病。

首先,让我们对果蝇的生物结构进行了解。果蝇的身体分三个主要体节-头部,胸节和腹部体-另外还有一对翅膀和三对附肢。身体总长约2-4毫米,重约1毫克。通常雌性果蝇的体型比雄性大。野生型果蝇有红色复眼,身体呈浅黄或浅灰色,腹部有黑色条纹。

果蝇的生命周期约2星期,其中包含4个主要阶段:卵,幼虫,蛹和成虫。果蝇成虫的平均寿命在60-80天,其寿命可受到一些因素,如温度和饲养密度的影响。

果蝇在除南极洲外的各大...

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