PTA Board Exam 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS
latest testbank(complete solutions) ASSURED SUCCESS/GRADED A+!!!
autosomal chromosomes - (answer)22 pairs of chromosomes that are not sex chromosomes
karyotype - (answer)A picture of all the chromosomes in a cell arranged in pairs
mutagen - (answer)chemical or physical agents in the environment that interact with DNA and may
cause a mutation
mutation - (answer)change in a DNA sequence that affects genetic information
nondisjunction - (answer)Error in meiosis in which homologous chromosomes fail to separate.
sex chromosomes - (answer)Chromosomes that determine the sex of an individual
sex-linked genes - (answer)a gene that is carried on the X or Y chromosome
trisomy - (answer)a condition in which an extra copy of a chromosome is present
variation - (answer)Any difference between individuals of the same species.
cell - (answer)The basic unit of structure and function in living things
microscope - (answer)An instrument that makes small objects look larger
cell theory - (answer)A widely accepted explanation of the relationship between cells and living things
, PTA Board Exam 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS
latest testbank(complete solutions) ASSURED SUCCESS/GRADED A+!!!
Robert Hooke - (answer)First to observe "small chambers" in cork and call them cells.
Anton von Leeuwenhoek - (answer)First person to discover living cells through a microscope.
Robert Remak - (answer)Said to have originally stated that cells come from pre-existing cells
Matthias Schleiden - (answer)Concluded that all plants are made of cells.
Theodor Schwann - (answer)Concluded that all animals are made of cells.
Rudolf Virchow - (answer)Proposed that new cells are formed only from cells that already exist.
cell membrane - (answer)thin, flexible barrier around a cell; regulates what enters and leaves the cell
cell wall - (answer)strong, supporting layer around the cell membrane in plant and some other cells
chloroplast - (answer)An organelle found in plant and algae cells where photosynthesis occurs
cytoplasm - (answer)A jellylike fluid inside the cell in which the organelles are suspended
endoplasmic reticulum - (answer)A cell structure that forms a maze of passageways in which proteins
and other materials are carried from one part of the cell to another.
latest testbank(complete solutions) ASSURED SUCCESS/GRADED A+!!!
autosomal chromosomes - (answer)22 pairs of chromosomes that are not sex chromosomes
karyotype - (answer)A picture of all the chromosomes in a cell arranged in pairs
mutagen - (answer)chemical or physical agents in the environment that interact with DNA and may
cause a mutation
mutation - (answer)change in a DNA sequence that affects genetic information
nondisjunction - (answer)Error in meiosis in which homologous chromosomes fail to separate.
sex chromosomes - (answer)Chromosomes that determine the sex of an individual
sex-linked genes - (answer)a gene that is carried on the X or Y chromosome
trisomy - (answer)a condition in which an extra copy of a chromosome is present
variation - (answer)Any difference between individuals of the same species.
cell - (answer)The basic unit of structure and function in living things
microscope - (answer)An instrument that makes small objects look larger
cell theory - (answer)A widely accepted explanation of the relationship between cells and living things
, PTA Board Exam 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS
latest testbank(complete solutions) ASSURED SUCCESS/GRADED A+!!!
Robert Hooke - (answer)First to observe "small chambers" in cork and call them cells.
Anton von Leeuwenhoek - (answer)First person to discover living cells through a microscope.
Robert Remak - (answer)Said to have originally stated that cells come from pre-existing cells
Matthias Schleiden - (answer)Concluded that all plants are made of cells.
Theodor Schwann - (answer)Concluded that all animals are made of cells.
Rudolf Virchow - (answer)Proposed that new cells are formed only from cells that already exist.
cell membrane - (answer)thin, flexible barrier around a cell; regulates what enters and leaves the cell
cell wall - (answer)strong, supporting layer around the cell membrane in plant and some other cells
chloroplast - (answer)An organelle found in plant and algae cells where photosynthesis occurs
cytoplasm - (answer)A jellylike fluid inside the cell in which the organelles are suspended
endoplasmic reticulum - (answer)A cell structure that forms a maze of passageways in which proteins
and other materials are carried from one part of the cell to another.
