Answer: A cactus has needles to prevent animals from eating the water out from it.
Explanation:
Organic compounds, such as carbohydrates, lipids, proteins and nucleic acids within the human body are referred as macronutrients.
These various macronutrients play different role in body like carbohydrates are used for energy (glucose). Fats are used to break food into fatty acids and protein helps in making hormones and muscles.
These macronutrient helps in the prevention of disease, provide energy to the body. All the macromolecules except the lipids are known as polymers.
Polymers are the natural or synthetic substance that are composed of large molecules that is called macromolecules.
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Answer:
All of the genes controlling the traits behaved as if they were located on different chromosomes.
Explanation:
Mendel's experiments with pea plants lead to two principles:
- Law of segregation which states that the pair of alleles (for any trait) of each parent separate, meaning that one allele passes from father and another from mother to an offspring.
- Law of independent assortment which states that different pairs of alleles (for different traits) are passed to offspring independently of each other (traits are located on different chromosomes).
1/4 recessive can be expected for the recessive trait of mono hybrids from the F2 generation.
Option D
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Explanation:</u></h3>
Mono hybrid cross is defined as the crossing between two plants considering the two different alleles of a particular character. It was 1st performed by Father of Genetics, Sir Gregor Mendel. The mono hybrid cross done by him considered the character tallness of garden pea plants, of which one was tall and other was short.
He crossed them to get all tall plants in 
Filial generation. Now as he self bred those plants, he got the tall and short plants in ratio of 3:1. Thus he proved that the recessive trait of mono hybrids is 
of the total population of F2 generation.
