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TYPES OF SPERM
Mainly two types .
(1) Flagellated Sperm - Generally all sperm are monoflagelated, but in todfish or opsonus sperm is biflagelated.
(2) Non flagellated sperm - Flagella is absent, present in some nematods, crustacean etc.
In ascaris (nematod) and polyphemus (crustacean) sperms are amoeboid.
What are gametes? Gametes are cells specialized in sexual reproduction. They have half of the maximum number of chromosomes of the species and unite with another gamete giving
Valve Thrombosis : Valve thrombosis causes sudden deterioration of the patient's haemodyarnics. A stuck valve may produce both stenosis and incompetence. If diagnosed early s
If the cans of regular soda are made with aluminium than diet soda, then regular soda will sink. Write brief descriptions of how you could test this hypothesis.
point out the criticism of lamarckism in any six short points.
Each gene has a characteristic mutation rate. Mutation rates are often described as an average per gene basis. For instance, Drosophila has one detectable mutation per 10,000 loci,
Soil pH and Nutrient Availability Soil pH is the most important factor which governs the availability of nutrients in soil. All the nutrients are absorbed by plants in their io
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M e rc u r y The metal is biologically non-essential but being used in various industries, it is released in environment from both natural and anthropogenic sources. Man-m
Define Advantages and Disadvantages of Swab Method? Advantages of Swab Method 1. Suitable for flexible, uneven and heavily contaminated surfaces. 2. Rapid, simple and ine
Amount of intracellular chloride ions in neuron A Neuron A is a healthy neuron with all the usual ion channels. When at rest with a membrane voltage of R millivolts, neuron A
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