Answer:
D. Aids
Explanation:
Aids is one of the most deadliest diseases in the world. When you contract aids, it's designed to infect the cells that try to destroy it, it's a whole zombie apocalypse in your body and you don't even know it.
It attacks and weakens the immune system, and our immune system defends our bodies against infections, but HIV is extremely strong and it over powers the system, I'm not sure if there's an immune system strong enough to fight HIV or aids.
The hypothesis devised in this study by the researcher is –
" White fly nymphs escape predation because of their translucent bodies."
In order to test this hypothesis, the researcher is required to conduct an experiment where two sets of white fly nymphs are formed and fed to their predators. The two set of subjects would be -
Set I – White fly nymphs with translucent bodies
Set II- White fly nymphs with translucent bodies coated with harmless dyes.
The number of predated flies in each set can be compared to deduce justification for assumed hypothesis.
Hence, option B is correct
The genes, which are part of DNA, contain the<u> genetic information</u> inherited from the parents determine the traits of an organism.
The ‘complete set of all the genes and the DNA’ is called the genome which stores the entire set of information of how an organism is structured and maintained.
The pattern of dominant and/or recessive traits and the genetic variations are determined by the allelles.
Explanation:
The genetic codes in the genes represent the particular amino acid codes and their linkages specific to particular protein. The amino acids link together to form long polypeptide chains of protein molecules.
These proteins determine various traits through various roles like:
Messenger proteins: Hormones like insulin, estrogen etc., control and coordinate various functions of the body
Pigments: Like melanin determines the color of the hair, skin, eyes.
Structural protein: Like keratin gives structure of hair, nails; myosin determines muscle structure
Antibodies: Determine the immunity of a person
Ion channel proteins, messenger proteins, structural proteins, receptor proteins etc.: Determine various physiological traits.
Answer:
Seeds- form through <u><em>sexual </em></u>reproduction and contain an embryo that gives rise to a new plant.
Explanation:
The formation of seeds occur when a ripened ovule is fertilized by pollen. If the pollen and the ovule are from the same plant, then it is termed as self-pollination. If the pollen fertilizes the ovule of another plant then it is known as cross pollination. The seed contains the embryo which has the capability to form and generate into a new plant. Hence, the formation of seeds is a phenomenon which occurs in sexually reproducing plants.
Answer:
Molecular mass or vapor density
Explanation:
The empirical formula is the simplest formula of a compound. The molecular formula expresses the exact formula of the compound. To derive the molecular formula, we need information about its molecular mass or if given the vapor density.
(Empirical Formula)n = Molecular formula ------(i)
n = number of repeating units of the empirical formula present in one mole of the molecule
also, (molar mass of empirical formula)n = molar mass of compound
From here, we can find n and insert in (i) above.
