Quizziz - Biology Review
Which of the following is an example of a homozygous dominant genotype? a. BB b. Bb c. bB d. bb
a. BB
What is the purpose of seed adaptations? a. To get seeds to new lands. b. To make seeds buried deeper underground. c. To provide nutrients to seeds. d. To prevent water loss through stomata.
a. To get seeds to new lands.
Which component of a nucleotide contains the information needed to make proteins? a. base b. deoxyribose sugar c. phosphate d. amino acid
a. base
What part of DNA holds the genetic information? a. the nitrogenous base b. the ribose sugar c. the phosphodiester bond d. the phosphate
a. the nitrogenous base
Which of the following is true about the kingdom Bacteria? a. Bacteria are not motile. b. Bacteria have a cell wall. c. Bacteria reproduce sexually. d. Some bacteria have a nucleus.
b. Bacteria have a cell wall.
Which symbiotic relationship is described by one individual benefiting and the other being neither harmed nor benefited? a. Mutualism b. Commensalism c. Parasitism d. Competition
b. Commensalism
A change in DNA is called a __________________. a. Nucleotide b. Mutation c. Radiation d. Transcription
b. Mutation
If a homozygous dominant (AA) individual is crossed to a homozygous recessive (aa) individual, what will the genotypes be of the offspring? a. 50% AA, 50% aa b. 25% AA, 50% Aa, 25% aa c. 100% Aa d. 50% AA, 50% Aa
c. 100% Aa
The human body has 23 homologous pairs of chromosomes. How many chromosomes does a somatic cell have? a. 12 b. 23 c. 46 d. 92
c. 46
The flower of a plant is involved in reproduction. Which parts are male and which are female? a. Male: style; female: filament b. Male: xylem; female: anther c. Male: stamen; female: pistil d. Male: ovary; female: stamen
c. Male: stamen; female: pistil
How do molecules move during facilitated diffusion? a. With the concentration gradient, using energy b. Against the concentration gradient, without using energy c. With the concentration gradient, without using energy d. Against the concentration gradient, using energy
c. With the concentration gradient, without using energy
In natural selection, one variation which is present in ALL members of a population is a called a - a. genotype b. speciation c. adaptation d. diversity
c. adaptation
What is meant by the term "genetic variation?" a. Some individuals have the same genes as others b. Some genes are multiplied in tetraploid organisms c. Some chromosomes are longer than others d. Some individuals have different genes than others
d. Some individuals have different genes than others
Fill in the blanks: Proteins are made of different ____________ which are arranged in different orders, or _________________. a. ribosomes, tRNAs b. polymers, monomers c. mRNA, bases d. amino acids, sequences
d. amino acids, sequences
The original cell which gave rise to all other cells in evolution had which three parts? a. ribosomes, mitochondria, DNA b. nucleus, cell membrane, DNA c. chloroplasts, mitochondria, DNA d. ribosomes, membrane, DNA
d. ribosomes, membrane, DNA