The correct answer is that ferns have two part in their life cycle: Diploid phase and haploid phase
The life cycle of a fern has two parts: sporophyte stage and gametophyte stage. The gametophyte stage of ferns are haploid which releases gametes and the sporophyte stage are diploid that produces spores. This kind of life cycle is known as the "alternation of generation".
Answer: B. Melting temperatures of primer should be between 55-80 degree Celsius.
Explanation:
Bacause the melting temperature controls the binding of the primers to your template DNA. At melting temperature 50% of the primer molecules are bound to their corresponding target sequence. If the difference in melting temperature between the two primers is too high, it might be difficult to find experimental conditions where both primers can bind to their target.
Answer:
Explanation:
The Julia butterfly (or dryas iulia) isn't trying to cheer up the turtle, it is actually a symbiotic relationship between the two creatures. The butterflies undertake the process of lachryphagy, or 'tear feeding' as a way of gaining much needed nutrition.
Answer:
los alimentos están compuestos principalmente por cuatro moléculas básicas -todas ellas consideradas macronutrientes- como son; el agua, las proteínas, los hidratos de carbono y los lípidos, sustancias que al ser cocinadas experimentan una serie de cambios, creando las estructuras y texturas de nuestras
