Digestive System
What organ is responsible for chewing food and mixing it with saliva?
Mouth
What part of the plant absorbs water and minerals from the soil?
Roots
What type of trait is expressed when at least one dominant allele is present?
Dominant trait
What do we call the genetic makeup or allele combination of an organism?
Genotype
What tool is used to predict the possible traits of offspring?
Punnett square
What liquid in the mouth helps soften food and begins the digestion of starch?
Saliva
What plant tissue transports water and minerals from the roots to the leaves?
Xylem
What type of trait is expressed only when two recessive alleles are present?
Recessive trait
What do we call the physical appearance or visible trait of an organism?
Phenotype
In a cross between TT × tt, what will be the genotype of all offspring?
Tt
What organ produces acid and enzymes that help break down food?
Stomach
What plant tissue transports food or sugar from the leaves to other parts of the plant?
Phloem
In the genotype Tt, which allele is dominant?
T
Is Bb a genotype or phenotype?
Genotype
In a cross between Tt × Tt, what are the possible genotypes of the offspring?
TT, Tt, and tt
In which part of the digestive system does most nutrient absorption happen?
Small intestine
What process causes water to evaporate from the leaves of plants?
Transpiration
If tall plant T is dominant over short plant t, what trait will show in a plant with genotype Tt?
Tall plant
If B means brown eyes and b means blue eyes, what is the phenotype of Bb?
Brown eyes
In a cross between Bb × bb, what percentage of offspring will be bb?
50%
What is the function of the large intestine in digestion?
It absorbs water and forms solid waste or feces.
Why is transpiration important in plants?
It helps pull water and minerals upward from the roots to the leaves.
Why does a recessive trait disappear in a heterozygous organism?
Because the dominant allele masks or hides the recessive allele.
What is the difference between genotype and phenotype?
Genotype is the allele combination, while phenotype is the visible trait or appearance.
If T is tall and t is short, what is the phenotypic ratio of Tt × Tt?
3 tall : 1 short