Genetics
A mutation in which type of cell would be passed on to an offspring?
liver cell skin cell egg cell heart cell
egg cell
Which of the following is NOT something we can tell by looking at fossils?
A. When an organism lived
B. The type of environment it lived it
C. When the organisms went extinct
D. Where the organism reproduced
Where the organism reproduced
In a population there must be differences between individuals in order for natural selection to occur. These differences are known as -
A. traits
B. variation
C. homologies
D. extinction
variation
Which classification level is the most specific and includes only organisms that can successfully reproduce?
a. Kingdom C. Phylum
b. Genus d. Species
Species
If brown is dominant to green, and a person is heterozygous, what is their genotype?
BB Bb bb BBbb
Bb
Which of the following is the BEST indicator of a close evolutionary relationship between two organisms?
A. similar DNA C. similar traits
B. similar diets D. similar location
similar DNA
In natural selection the term "fit" means -
A. the organism is the strongest
B. the organisms is best at getting food
C. the organism is able to survive and reproduce
D. the organism is able to find shelter
the organism is able to survive and reproduce
Correctly identify the kingdom whose members have these traits: multicellular, true nucleus, unable to move, and heterotrophic.
a. Archeabacteria c. Plant
b. Protist d. Fungi
Fugi
Brown eyes are dominant to green eyes
John has brown eyes, his dad has brown eyes, and his mom has green eyes. What allele did John get from his mom?
B b brown BB bb
b
Which types of structures have the SAME structure but perform different functions?
Analogous homologous
embryological vestigial
homologous
An inherited characteristic that increases an organism’s ability to survive and reproduce in its specific environment is called a(n)…
Vestigial Structure Speciation
Adaptation Radiation
Adaptation
Sunlight + H2O + CO2 ---> C6H12O6 + O2
What process does this equation represent?
A. Photosynthesis C. Protein Synthesis
B. Cellular Respiration D. DNA Replication
A. Photosynthesis
If brown is dominant to green and a homozygous brown (BB) is crossed with a hybrid (Bb), what is the percent chance they have green babies?
0% 25% 50% 75% 100%
0%
Organism A : 76
Organism B: 35
Organism C: 54
The chart above shows how many amino acids each organism has in common with a cow. Which organism is most closely related to the cow?
A B C B & C
A
Which of the following best describes natural selection?
a. Some organisms choose to live and some die in each generation.
b. Only the largest and strongest organisms survive.
c. Random genes in a population always result in better characteristics in offspring.
d. The best adapted individuals survive and reproduce, contributing the most to the next generation.
The best adapted individuals survive and reproduce, contributing the most to the next generation.
The sequence (order) of nitrogen bases in DNA varies widely. The sequence (order) of the bases in DNA is most important for which of the following?
a. Providing the instructions for the traits of an organism
b. Preventing mutations from occurring during DNA replication
c. Allowing DNA to have the shape necessary for replication
d. Helping form the sugar-phosphate backbone of DNA molecules
Providing the instructions for the traits of an organism
If blue is recessive to brown and a heterozygous male is crossed with a homozygous blue female, what % of their children would be heterozygous?
0% 25% 50% 75% 100%
50%
Camels, llamas, and alpacas are all members of the same taxonomic family, have similar features and originated in north America. This information provides evidence that these animals-
a. live is the same ecosystem
b. have slowly evolved to become herbivores
c. have a common ancestor
d. exchanged DNA recently
. have a common ancestor
Common baboons live on the savanna in breeding groups called troops. The males of the troops tend to leave and join neighboring troops, while the females do not. Which of these is a likely outcome of the movement by males?
A. Gene flow C. Genetic drift
B. speciation D. decrease in predators
Gene flow
If the parent cell has 24 chromosomes before it enters the cell cycle, how many chromosomes will each daughter cell have after mitosis?
24 48 12 96
24