HELP ME PLS
1. A manual contains instructions for how to build a variety of structures using a set of interlocking bricks. If this scenario is used as a model for genetic information, which statement is correct?(1 point)
Responses
The manual is a chromosome.
The manual is a chromosome.
Each set of instructions is a protein.
Each set of instructions is a protein.
Each structure is a gene.
Each structure is a gene.
The interlocking bricks are the chromosomes.
2.How are chromosomes and genes alike?(1 point)
Responses
They both encode a single protein.
They both encode a single protein.
They both contain genetic material.
They both contain genetic material.
They are both found on chromatids.
They are both found on chromatids.
They are both part of DNA.
3.In pea plants, the allele for round peas, R, is dominant over the allele for wrinkled peas, r. What is the phenotype of a pea plant with genotype Rr?(1 point)
Responses
some round and some wrinkled
some round and some wrinkled
wrinkled
wrinkled
slightly wrinkled
slightly wrinkled
round
4.What determines a trait of an organism?(1 point)
Responses
the number of dominant alleles
the number of dominant alleles
the combination of its alleles
the combination of its alleles
the number of copies of the gene
the number of copies of the gene
its phenotype
5.Which statement is accurate about dominant alleles?(1 point)
Responses
They are expressed only when a recessive allele is not present.
They are expressed only when a recessive allele is not present.
They are indicated by lowercase letters.
They are indicated by lowercase letters.
They are expressed whenever present.
They are expressed whenever present.
They result in the trait of shortness in pea plants.
6.Consider the following scenario:
In a certain dog breed, the allele B for a black coat is dominant, and the allele b for a spotted coat is recessive. What genotypes for this dog breed would lead to a spotted phenotype?
(1 point)
Responses
BB
BB
BB and bb
BB, and , bb
Bb
Bb
bb
7.Which statement is true of all proteins?(1 point)
Responses
They carry oxygen in human blood.
They carry oxygen in human blood.
Their structure is related to their function.
Their structure is related to their function.
Their main function is to cause mutations.
Their main function is to cause mutations.
They are created by mutations in DNA.
8.What is the main benefit of genetic biodiversity?(1 point)
Responses
Genetic biodiversity helps individuals compete with each other.
Genetic biodiversity helps individuals compete with each other.
Genetic biodiversity helps populations adapt to environmental changes.
Genetic biodiversity helps populations adapt to environmental changes.
Genetic biodiversity helps populations avoid predators.
Genetic biodiversity helps populations avoid predators.
Genetic biodiversity helps individuals produce more offspring
9.Which statement is true?(1 point)
Responses
Neutral mutations occur when a mutation is found in a DNA region and results in a harmful disease.
Neutral mutations occur when a mutation is found in a DNA region and results in a harmful disease.
Neutral mutations occur when a mutation is found in a DNA region that codes for proteins.
Neutral mutations occur when a mutation is found in a DNA region that codes for proteins.
Neutral mutations occur when a mutation in a DNA region results in the same sequence as the original.
Neutral mutations occur when a mutation in a DNA region results in the same sequence as the original.
Neutral mutations occur when a mutation in a DNA region provides an advantage that helps the organism survive.
Neutral mutations occur when a mutation in a DNA region provides an advantage that helps the organism survive.
10.Three plants are grown in the same environmental conditions with equal sunlight, water, and space to grow. One plant grew to have a purple flower while the other two grew white flowers. What is the most likely conclusion that can be made for the change in flower color?(1 point)
Responses
Environmental conditions caused the differences in flower color.
Environmental conditions caused the differences in flower color.
Genetic factors caused the differences in flower color.
Genetic factors caused the differences in flower color.
Genetic factors caused environmental changes that caused the differences in flower color.
Genetic factors caused environmental changes that caused the differences in flower color.
Environmental factors caused a genetic mutation that caused the differences in flower color.
11.A scientist sets up terrariums in a laboratory and observes the growth of lizards in each terrarium. Which of the following observations could be used as evidence that the amount of space in an environment can affect an animal's growth?(1 point)
Responses
Two lizards of the same species grow to different sizes in terrariums with different food supplies.
Two lizards of the same species grow to different sizes in terrariums with different food supplies.
Two lizards of the same species grow to different sizes in different-sized terrariums.
Two lizards of the same species grow to different sizes in different-sized terrariums.
Two lizards of the same species grow to different sizes in the same terrarium.
Two lizards of the same species grow to different sizes in the same terrarium.
Two different species of lizard grow to different sizes in the same terrarium.
Four students rank the potential energies of some states of matter. Which student is correct?
2 answers
its
1: tasha
1: tasha
2 answers