ATI TEAS 7 LIFE AND PHYSICAL
SCIENCES EXAM QUESTIONS WITH
COMPLETE ANSWERS
Where does protein synthesis take place? - Answer-cytoplasm
protein synthesis can be described in two stages: - Answer-transcription and translation
A pea plant has a dominant homozygous genotype. Which of the following letters best
represents this genotype?
A.WW
B.Ww
C.ww
D.WX - Answer-WW
Pea plants have seeds that are either green or yellow. Green seeds are dominant to
yellow seeds. Two pea plants that are heterozygous for seed color are crossed. Predict
the percentage of their offspring that will have green seeds.
A. 0%
B. 25%
C. 50%
D. 75% - Answer-75%
Which of the following best describes the expression of alleles? - Answer-phenotype
which of the following best describes non-Mendelian inheritance patterns? - Answer-
they occur when there are factors other than dominant and recessive traits
Use a Punnett square to show the likely phenotypes of crossing two heterozygous tall
pea plants. The allele for tall plants is dominant. - Answer-3:1
what are phenotypes? - Answer-physical traits such as eye color, hair color, etc but also
blood type
which of the following groups is synthesized from monosaccharides like glucose? -
Answer-carbohydrates
which of the following macromolecules stores genetic information? - Answer-
deoxyribonucleic acid
which of the following monomers form enzymes? - Answer-amino acids
which of the following food contain mostly lipids?
, A. potatoes
B. oil
C. chicken
D. lettuce - Answer-oil
what is a common disaccharide? - Answer-sucrose (table sugar)
what is a common monosaccharide also known as glucose? - Answer-C6H12O6
what is the function of the rough endoplasmic reticulum? - Answer-contains ribosomes;
synthesizes and processes proteins in the cell
what is the function of the smooth endoplasmic reticulum? - Answer-does not contain
ribosomes; synthesizes and concentrates lipids in the cells. Inactivates toxins and
harmful metabolic products
what is the function of the vacoule? - Answer-serves as storage for a variety of
elements, such as water, toxins and carbohydrates
what are the 5 phases of mitosis? - Answer-1. interphase
2. prophase
3. metaphase
4. anaphase
5. telophase
during what phase of mitosis do chromosomes condense and visible chromosome
appear? - Answer-prophase
during what stage of mitosis are chromosomes pulled apart to the poles; and cell
division begins? - Answer-anaphase
which of the following nucleotides pairs with adenine in DNA? - Answer-thymine
which of the following is the number of chromosomes found in a human cell? - Answer-
46 (23pairs)
which of the following statements about nucleotides and genes is correct? - Answer-
nucleotides form strings of DNA that make up genes
which of the following is the name for a segment of DNA that codes for a protein? -
Answer-gene
where are genetic information contained? - Answer-chromosomes
what are organisms with nuclei called? - Answer-eukaryotic
SCIENCES EXAM QUESTIONS WITH
COMPLETE ANSWERS
Where does protein synthesis take place? - Answer-cytoplasm
protein synthesis can be described in two stages: - Answer-transcription and translation
A pea plant has a dominant homozygous genotype. Which of the following letters best
represents this genotype?
A.WW
B.Ww
C.ww
D.WX - Answer-WW
Pea plants have seeds that are either green or yellow. Green seeds are dominant to
yellow seeds. Two pea plants that are heterozygous for seed color are crossed. Predict
the percentage of their offspring that will have green seeds.
A. 0%
B. 25%
C. 50%
D. 75% - Answer-75%
Which of the following best describes the expression of alleles? - Answer-phenotype
which of the following best describes non-Mendelian inheritance patterns? - Answer-
they occur when there are factors other than dominant and recessive traits
Use a Punnett square to show the likely phenotypes of crossing two heterozygous tall
pea plants. The allele for tall plants is dominant. - Answer-3:1
what are phenotypes? - Answer-physical traits such as eye color, hair color, etc but also
blood type
which of the following groups is synthesized from monosaccharides like glucose? -
Answer-carbohydrates
which of the following macromolecules stores genetic information? - Answer-
deoxyribonucleic acid
which of the following monomers form enzymes? - Answer-amino acids
which of the following food contain mostly lipids?
, A. potatoes
B. oil
C. chicken
D. lettuce - Answer-oil
what is a common disaccharide? - Answer-sucrose (table sugar)
what is a common monosaccharide also known as glucose? - Answer-C6H12O6
what is the function of the rough endoplasmic reticulum? - Answer-contains ribosomes;
synthesizes and processes proteins in the cell
what is the function of the smooth endoplasmic reticulum? - Answer-does not contain
ribosomes; synthesizes and concentrates lipids in the cells. Inactivates toxins and
harmful metabolic products
what is the function of the vacoule? - Answer-serves as storage for a variety of
elements, such as water, toxins and carbohydrates
what are the 5 phases of mitosis? - Answer-1. interphase
2. prophase
3. metaphase
4. anaphase
5. telophase
during what phase of mitosis do chromosomes condense and visible chromosome
appear? - Answer-prophase
during what stage of mitosis are chromosomes pulled apart to the poles; and cell
division begins? - Answer-anaphase
which of the following nucleotides pairs with adenine in DNA? - Answer-thymine
which of the following is the number of chromosomes found in a human cell? - Answer-
46 (23pairs)
which of the following statements about nucleotides and genes is correct? - Answer-
nucleotides form strings of DNA that make up genes
which of the following is the name for a segment of DNA that codes for a protein? -
Answer-gene
where are genetic information contained? - Answer-chromosomes
what are organisms with nuclei called? - Answer-eukaryotic
