Match the DNA base with its complementary partner in the DNA strand.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Guanine (G) | arrow_right_alt | Thymine (T) |
Cytosine (C) | arrow_right_alt | Cytosine (C) |
Adenine (A) | arrow_right_alt | Guanine (G) |
Associate the following genetic components with their correct descriptions.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Nucleotide | arrow_right_alt | Five-carbon sugar in RNA |
Ribose | arrow_right_alt | Structure of DNA resembling a twisted ladder |
Double Helix | arrow_right_alt | Consists of sugar, phosphate, and a nitrogen base |
Which of the following correctly distinguishes RNA from DNA?
A strand of RNA has the sequence AUUGCGGAA. Explain what caused this strand to be made.
Match the type of mutation to its description.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Insertion mutation | arrow_right_alt | Change in a single nucleotide sequence. |
Deletion mutation | arrow_right_alt | Addition of one or more nucleotide bases. |
Point mutation | arrow_right_alt | Removal of one or more nucleotide bases. |
Match the type of mutation to its potential effects.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Neutral mutation | arrow_right_alt | Causes disease or reduced fitness. |
Beneficial mutation | arrow_right_alt | Has no significant impact on fitness. |
Harmful mutation | arrow_right_alt | Gives an advantage to the organism. |
Luna is studying the different types of RNA that play a role in protein synthesis. Match the type of RNA to it's appropriate description.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
tRNA | arrow_right_alt | carries transcribed code for a protein |
rRNA | arrow_right_alt | carries amino acids to ribosomes |
mRNA | arrow_right_alt | forms subunits of ribosomes |
The model below shows the structure of two molecules. Which statements about the two structures seen in the model are correct? Choose TWO correct answers.
Categorize the descriptions to the correct label
occurs in the nucleus
occurs in the ribosome
decodes mRNA to amino acids
copies DNA and forms mRNA
Transcription
Translation
What is it called when chromosomes swap DNA? During what phase of meiosis does this process happen?
Drag and drop the description to the category that it belongs to.
Homologous chromosomes align at the equator.
Four daughter cells with haploid number of chromosomes is formed.
Two daughter cells with haploid number of chromosomes is formed.
Chromosomes align at the equator single file
Meiosis-I
Meiosis-II
Match the image with the correct phase name-
Anaphase-I | Metaphase-I | Crossing Over | |
|---|---|---|---|
| |||
| |||
|
The number of chromosomes in muscle cells of a coyote are 40. What will be the number of chromosomes in its sperms.
One difference between Autosomes and sex chromosomes humans is-
In goats, the allele for horns (H) is dominant to the allele for no Horns (h). Both parents are hybrids (Hh) for horns. What is the percent chance that the offspring will have horns?
Match the explanation with the vocab word.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
The genetic constitution of an organism | arrow_right_alt | Allele |
When the pair of alleles are different | arrow_right_alt | Genotype |
When the pair of alleles are same | arrow_right_alt | Phenotype |
The alternative form of a gene | arrow_right_alt | Homozygous |
The outward appearance of an organism | arrow_right_alt | Heterozygous |
R = able to roll tongue
r = unable to roll tongue
One brother has genotype RR and the other brother has genotype Rr.
Which statement is true about these two brothers?
If a man has blood type homozygous A and his wife has blood type AB, what blood types are possible among their children?
The image alongside is an example of-
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
If a Hemophilic male (XhY) has children with a carrier female (XhX) what is the possibility of the couple having a hemophilic child?
Match the vocab with correct description-
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
different versions of a gene that exist in a population. (Ex. Blood type) | arrow_right_alt | Polygenic traits |
A trait controlled by genes on X-Chromosomes | arrow_right_alt | Multiple alleles |
a pattern of inheritance where multiple genes work together to control a single trait | arrow_right_alt | Sex linked traits |
Match the categories with the correct description-
Farmers have selectively bred wheat and rice for higher yields, disease resistance, and other desirable traits
Giraffe necks evolving longer to reach leaves high in trees.
Cattle have been bred for increased milk production, meat quality, and overall size.
Beaks of finches adapting to different food sources.
Artificial Seclection
Natural Selection
A scientist presented the information in the illustration as part of a report on the evolution of species. How does the information support the claim of common ancestry?
Match the type of evidence to its explanation.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Fossils | arrow_right_alt | Study of species distribution. |
Biogeography | arrow_right_alt | DNA and protein similarities in organisms. |
Embryonic development | arrow_right_alt | Remains of organisms from the past. |
Molecular biology | arrow_right_alt | Similar stages of development in embryos. |
A researcher recently discovered a new species of bacteria in the body of a tubeworm living near a hydrothermal vent. He compared the DNA of this new bacterial species to the DNA of four other species of bacteria. The DNA sequences came from the same part of the bacterial chromosome of all four species.
According to these data, the unknown bacterial species is most closely related to
Categorize the following statements as either "Scientific Theory" or "Hypothesis".
Based on extensive evidence.
Proposes a specific prediction.
Must be tested for validity
Recognized by scientific community
Scientific Theory
Hypothesis
What does the term 'gene pool' refer to?
Some organisms have features that have different functions, but similar structures. One example is the forelimb of humans, dogs, birds, and whales.
How do fossils support evolution?
Examples of analogous structures include
Match the mechanism of evolution to its definition.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Gene flow | arrow_right_alt | Survival and reproduction of best adapted organisms. |
Genetic drift | arrow_right_alt | Movement of alleles between populations. |
Natural selection | arrow_right_alt | Random changes in allele frequencies in small populations. |
What mechanism of evolution is shown below-
Select the statement that is true for evolution.
The model below shows a how populations of organisms can change. Which of the following concepts is best illustrated by this demonstration?
In a population of beetles, there is a variation in shell color—some are green, while others are brown. Birds, the main predators of these beetles, tend to spot and eat green beetles more easily in environments with brown soil and dry leaves. Over time, researchers have noticed that the population of brown beetles has increased, while the number of green beetles has decreased.
Which of the following best explains the change in the beetle population over time?
Carrying capacity refers to:
A population of 2,000 deer lived on a plateau. In 1906, all hunting of the deer was banned, natural predators were exterminated, and sheep and cattle, which competed with the deer, were banned from the plateau. The graph shows the deer population in the years following this.
Which statement regarding factors affecting deer population is supported by the data in the graph?
Determine if the following scenarios represent density dependent or density independent limiting factors.
A large number of moose die from a rare bacterial infection that spreads through the population.
This year, Anne was excited about planting another tomato garden. Two weeks after planting seeds, the weather turned cold. A frost killed most of the seedlings, and Anne had to plant new ones.
A population of bass is growing quickly in a freshwater lake. Then a parasitic protozoa invades the lake, infecting the bass. The parasite spreads quickly to other fish.
Density Dependent
Density Independent
The change in the beetle population over time is best explained by which biological concept?
If the environment changes and the ground becomes green due to moss growth, what is the most likely outcome for the beetle population over time?
