MAAP Biology 2

Question 1

In Mendel's experiments, which trait is described as 'dominant'?

Accepted Answer

A trait that is expressed when at least one dominant allele is present

Answer

A dominant trait is expressed in the phenotype whenever at least one dominant allele is present.

Question 2

What term describes an organism with two identical alleles for a trait (e.g., TT or tt)?

Accepted Answer

Homozygous

Answer

Homozygous means both alleles for a gene are the same, either both dominant (TT) or both recessive (tt).

Question 3

Which type of cell division produces gametes (sperm and egg cells)?

Accepted Answer

Meiosis

Answer

Meiosis produces four haploid daughter cells (gametes) with half the chromosome number for sexual reproduction.

Question 4

What is the role of ribosomes in a cell?

Accepted Answer

Synthesize proteins

Answer

Ribosomes translate mRNA into proteins, carrying out the final step of gene expression.

Question 5

Which of the following is an example of a producer in an ecosystem?

Accepted Answer

Grass

Answer

Producers, such as grass, make their own food via photosynthesis and form the base of the food chain.

MAAP - Mississippi Academic Assessment Program Practice Test