Ask a New Question

Questions and answers by

emily

Questions (264)

When Mendel crossed a set of “true-breeding” purple-flowered (PP) pea plants with a set of true-breeding white-flowered (pp)
1. 1 answer
2. 71 views
When Mendel crossed a set of “true-breeding” purple-flowered (PP) pea plants with a set of true-breeding white-flowered (pp)
1. 1 answer
2. 73 views
Gregor Mendel described several unlinked traits in pea plants in which a dominant trait masked a recessive trait. Two such
1. 1 answer
2. 66 views
A trait’s –is the combination of alleles that is present at a gene locus, and a trait’s – is the outward expression of
1. 1 answer
2. 62 views
Which of the following contributions has Gregor Mendel made toward our understanding of genetics and inheritance?Correct
1. 1 answer
2. 72 views
In modern terms, Mendel’s law of segregationstates that each gamete formed through meiosis receives a single allele of each
1. 1 answer
2. 87 views
In modern terms, Mendel’s law of –states that each gamete formed through – receives a – , while the law of – states
1. 1 answer
2. 57 views
Two individuals with exactly the same genotype will have the same phenotype.true or false
1. 1 answer
2. 43 views
Even in simple Mendelian genetics, an offspring’s traits can be hard to predict. For example, two parents that do not exhibit
1. 1 answer
2. 74 views
What is Darwin's theory of evolution and how does it apply to human evolution? What is natural selection?
1. 1 answer
2. 96 views
What is the distinction between correlation and causation?
1. 1 answer
2. 41 views
A recent study found that at least 180 different genes seem to be correlated with height in humans, which is partly why height
1. 1 answer
2. 46 views
A guinea pig has red eyes, which is the recessive condition. Its eye color alleles are bb. In this example, bb is its
1. 1 answer
2. 46 views
Chickens will produce a “walnut comb” on their head only if they possess at least one dominant allele in each of two
1. 1 answer
2. 43 views
Chickens will produce a “walnut comb” on their head only if they possess at least one dominant allele in each of two
1. 1 answer
2. 54 views
A gene influences both the height of a tree and the number of branches that it produces.epistasis environmental effects
1. 1 answer
2. 50 views
Why are autosomal dominant disorders rarer than autosomal recessive disorders?Choose one: A. An allele for an autosomal dominant
1. 1 answer
2. 80 views
A female who is a carrier for an autosomal recessive disorder has the genotypeA. XtX. B. Tt. C. TT. D. tt.
1. 1 answer
2. 65 views
The pedigree shown most likely represents a condition that isA. sex-linked dominant. B. sex-linked recessive. C. autosomal
1. 1 answer
2. 97 views
Genetic carriers are individuals who carryA. two copies of a recessive mutated allele. B. one copy of a recessive mutated allele
1. 1 answer
2. 59 views
man and his wife are both carriers for a recessive disease allele. If the couple has a child, which of the following statements
1. 1 answer
2. 58 views
How do most autosomal recessive alleles that lead to lethal diseases persist in human populations?A. These diseases only affect
1. 1 answer
2. 52 views
If a father is unaffected by an X-linked condition and the mother is a carrier, what is the probability of their children being
1. 1 answer
2. 55 views
The pedigree shown diagrams an X-linked gene. The individual indicated by the arrow is ___________ for the gene.A. homozygous
1. 1 answer
2. 87 views
What information in a pedigree would indicate that a condition is likely sex-linked?A. Fifty percent of the individuals in the
1. 1 answer
2. 60 views
The Y chromosome in humans isChoose one: A. the only human sex chromosome. B. present only in females. C. normally found as a
1. 1 answer
2. 44 views
Which of the following statements about autosomes is true?A. There are 23 pairs in humans. B. Two homologous autosomes in a pair
1. 1 answer
2. 72 views
Which of the following statements about autosomes is true?
1. 1 answer
2. 68 views
Which of the following chromosome pairs would contain all of the same genes (not necessarily at the same loci)?A. A homologous
1. 1 answer
2. 76 views
The disease discussed in the animation is caused by a recessive allele. Recessive alleles frequently do not produce a protein
1. 1 answer
2. 57 views
According to the infographic, which autosomal disorder occurs at the highest rate?A. hemophilia B. Down syndrome C. Duchenne
1. 1 answer
2. 63 views
In 2005, a human clinical trial began in Germany to test gene therapy as a treatment for the recessive X-linked disease
1. 1 answer
2. 59 views
The infographic gives the frequencies of three disorders in males. Which of the following statements is true about the incidence
1. 1 answer
2. 45 views
The infographic refers only to male births and not to female births because it is illustrating the frequencies of which of the
1. 1 answer
2. 78 views
Hemophilia is a sex-linked disorder that is caused by a recessive allele. If the mom is a carrier of hemophilia and the dad
1. 1 answer
2. 114 views
The purpose of constructing a pedigree for a patient with a genetic disorder and their family isA. to predict the inheritance of
1. 1 answer
2. 61 views
Before gene therapy, Arabella Smygov suffered from spinal muscular atrophy due to a mutation in an allele of a gene that
1. 1 answer
2. 63 views
Before she received gene therapy treatment, Jennelle suffered bone and joint pain from sickle cell disease. Like sickle cell,
1. 1 answer
2. 72 views
What did Dr. James Bowman advocate for with regards to genetic screening and counseling?A. He advocated for mandatory genetic
1. 1 answer
2. 56 views
Marfan syndrome is caused by a defect in FBN1 gene located on chromosome 15. The gene normally encodes the fibrilllin-1, which
1. 1 answer
2. 57 views
According to the infographic, which autosomal disorder occurs at the lowest rate?A. fragile X syndrome B. Marfan syndrome C.
1. 1 answer
2. 70 views
Below is a picture of a karyotype of a human's chromosomes. What information can you gain from the karyotype that can help
1. 1 answer
2. 90 views
The typical number of chromosomes in a human somatic cell is ______.A. 69 B. 46 C. 23 D. 92
1. 1 answer
2. 40 views
Gene therapy is most effective at treating disordersA. where the patient lacks a necessary protein. B. resulting from a missing
1. 1 answer
2. 59 views
Most traits in humans are controlled by the action of multiple genes. These traits are referred to asA. recessive. B.
1. 1 answer
2. 68 views
The presence of one gene in Labrador retrievers influences coat color by affecting expression of another gene. This is one
1. 1 answer
2. 41 views
The observation that individuals who are deaf also have heart problems is an example ofA. epistasis. B. codominance. C.
1. 1 answer
2. 43 views
Which of the following is an example of incomplete dominance?A. A heterozygote cat has a medium-sized body instead of being
1. 1 answer
2. 48 views
Dihybrid crosses are crosses involvingA. two genes that control one trait. B. one gene with two alleles. C. one gene with four
1. 1 answer
2. 59 views
In a particular plant, two genes control height and flower color. Tall height (T) is dominant to short height (t). Yellow
1. 1 answer
2. 44 views
Being able to use a Punnett square to track the pattern of inheritance in a two-characteristic cross (for example, pea seed
1. 1 answer
2. 57 views
Mendel’s primary contribution to our understanding of genetic inheritance wasA. determining that DNA contains information that
1. 1 answer
2. 53 views
The chance of a parent passing on a given allele to a child ___________ each time he or she has another child.A. changes B. is
1. 1 answer
2. 83 views
Mendel’s breeding experiments with pea plants indicate that alleles of a gene separate duringA. meiosis. B. mitosis. C.
1. 1 answer
2. 50 views
Consider a gene with two alleles that show complete dominance. When a homozygous recessive individual (qq) is crossed with a
1. 1 answer
2. 43 views
A pea plant that is heterozygous for the flower color gene makes gametes. What is the probability that a specific gamete
1. 1 answer
2. 50 views
Two pea plants that are true-breeding for recessive white flowers are mated and their offspring analyzed. Which of the following
1. 1 answer
2. 89 views
If a person has two different alleles for a given gene, the person is ________ for that gene.A. true-breeding B. homozygous C.
1. 1 answer
2. 61 views
The figure shown indicates a homologous pair of chromosomes. Which of the following indicates the relationship between Gene A
1. 1 answer
2. 94 views
Which of the following statements regarding genes is true?A. Genes are the basic unit of information affecting a genetic trait.
1. 1 answer
2. 104 views
What is the most reasonable explanation for the variation in genome sizes across these living organisms?A. Higher order thinking
1. 1 answer
2. 58 views
Based on its genome size, which of the following must be true for a lungfish compared to the other organisms shown?A. The
1. 1 answer
2. 38 views
What do researchers hope to achieve in terms of human health by studying the dog genome?A. The goal is to find similar genes for
1. 1 answer
2. 68 views
In 1959, a Russian geneticist began breeding silver foxes. He chose the tamest individuals from each generation for breeding. In
1. 1 answer
2. 41 views
Carnations exhibit incomplete dominance in their flower color. The red (R) allele is incompletely dominant to the white allele
1. 1 answer
2. 48 views
In the animation, one P generation parent produces round, yellow seeds, and the other parent produces wrinkled, green seeds. In
1. 1 answer
2. 42 views
Which statement accurately describes the outcome of independent assortment as shown in this animation?A. Alleles associated with
1. 1 answer
2. 57 views
Look at the dihybrid cross of peas between two plants with round, yellow peas (RrYy). Determine which ratio best represents each
1. 1 answer
2. 80 views
Look at the dihybrid cross of peas between two plants with round, yellow peas (RrYy). Determine which ratio best represents each
1. 1 answer
2. 106 views
Which of the following appropriately describes the phenotype ratio in the F2 generation?choose one or more A. 1 PP:2 Pp:1 pp B.
1. 1 answer
2. 62 views
Which of the following appropriately describes the phenotype ratio in the F2 generation?A. 1 PP:2 Pp:1 pp B. 75% purple:25%
1. 1 answer
2. 54 views
What is the genotype of the F1 generation?A. heterozygous B. purple C. homozygous recessive D. homozygous dominant
1. 1 answer
2. 42 views
A biology student decides to copy Mendel’s experiment with pea plants. Unfortunately, some of the pea plants from the P
1. 1 answer
2. 67 views
Which of the following best represents a “genetic cross”?A. Rose flowers are collected, and the color variations are
1. 1 answer
2. 49 views
Sort the alleles below as either dominant or recessive.dominant or recessive r G P d h A
1. 1 answer
2. 38 views
Sort whether the following alleles as either "homozygous" or "heterozygous."homozygous or heterozygous GG Rr Aa ff aa Ea
1. 1 answer
2. 45 views
Rank the terms describing genetic material in descending order, from largest to smallest.gene for hair color genome A single DNA
1. 1 answer
2. 59 views
How could the Dog Genome Project potentially help researchers understand human diseases?A. Treatments that are successful in
1. 1 answer
2. 107 views
Rank the amount of genetic information contained at each level, from smallest to largest.cell gene chromosome organism
1. 1 answer
2. 53 views
Different alleles are the result of which?changes in the size of a chromosome mutations in DNA within a specific gene mutations
1. 1 answer
2. 66 views
Some genetic traits are invariant in a species, which means they don't change from individual to individual. Other genetic
1. 1 answer
2. 52 views
coat colorvariable or invarible
1. 1 answer
2. 74 views
coat color
1. 1 answer
2. 35 views
fur texturevariable or invarible
1. 1 answer
2. 42 views
ear shapevariable or invarible
1. 1 answer
2. 86 views
having two eyesvariable or invariable
1. 1 answer
2. 45 views
having four legsvariable or invarible
1. 1 answer
2. 86 views
inability to produce an enzymephysical biochemical or behavioral
1. 1 answer
2. 51 views
inability to produce an enzyme
1. 1 answer
2. 49 views
susceptibility to a type of cancerphysical, biochemical or behavioral
1. 1 answer
2. 51 views
love of swimmingphysical biochemical or behaviorial
1. 1 answer
2. 54 views
love of swimming
1. 1 answer
2. 42 views
nervousness around strangersphysical biochemical or behaviorial
1. 1 answer
2. 45 views
tail lengthphysical biochemical or behaviorial
1. 1 answer
2. 43 views
coat texturephysical biochemical or behaviorial
1. 1 answer
2. 39 views
When we think of the modern world, we associate it with cities and with industrialization. But for most of the period discussed,
1. 1 answer
2. 37 views
how might cloning be harmful
1. 1 answer
2. 35 views
what is cloning
1. 1 answer
2. 38 views
what is inbreeding
1. 1 answer
2. 44 views
what is hybridization
1. 1 answer
2. 28 views

Pages

1
2
3

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2024