Answer:
Offspring of two different true-breeding varieties are called hybrids.
Explanation:
Pure-breeding plants are plants that self pollinate for many generations and all its offspring had the same features as the parents, generation after generation.
When Mendel cross pollinate this pure-breeding plants with contrasting traits, the offspring is called hybrids because they resulted from a cross between two pure-breeding plants with contrasting traits.
Answer:
The correct answer will be option-D
Explanation:
Pulmonary Surfactant is a complex substance produced by the pneumocytes epithelial II cells in the alveolar sac.
The surfactant is composed of the proteins and lipids which plays a role in keeping alveoli open by reducing the surface tension formed between the air and liquid.
The surfactant act by forming a monolayer surface film which helps reduce the surface tension.
Thus, option-D is the correct answer.
Answer:
Smooth kernel corn plant : wrinkled kernel corn plant 
Explanation:
Mendelian inheritance follows the laws of segregation and independent assortment. Thus, there exists neither co-dominance nor incomplete dominance.
Let the allele for smooth kernel trait of corn plants be represented by "S"
and the allele for wrinkled kernel trait of corn plants be represented by "s"
The genotype of heterozygous smooth kernel corn plants will be "Ss"
The offspring produced by crossing two heterozygous smooth kernel corn plants would be -
Ss * Ss
SS, Ss, Ss, ss
Out of four offspring , one offspring is homozygous smooth kernel corn plant
Two offspring are heterozygous smooth kernel corn plants
and the remaining last offspring is homozygous wrinkled kernel corn plant
The phenotypic ration is
Smooth kernel corn plant : wrinkled kernel corn plant 
Answer:
prefix meaning for "mono" means "one and "tri" means three
These are good words for a disorder missing a chromosome (mono) or having an extra (tri) since it is litterally telling you it either has 3 or 1 chromosome