Woodrats are medium sized rodents with lots of interesting behaviors. You may know of them as packrats. Let's assume that the trait of bringing home shiny objects (H) is controlled by a single locus gene and is dominant to the trait of carrying home only dull objects (h). Suppose two heterozygous individuals are crossed. How many of each genotype would be expected if only 4 offspring were produced? How many of each phenotype would be expected?

Q: There are two genetically-determined traits that are seen in a species of salamander. The S-gene…

A: A dihybrid cross is a breeding experiment between P-generation (parental generation) organisms that…

Q: A wild-type fruit fly (heterozygous for gray body color and wings) mated with a black fruit fly with…

A: Need to find the recombination frequency between the two genes.

Q: When many families were tested for their ability to taste the chemical PTC, the parental pairs were…

A: The ability to taste PTC is a dominant trait. Taster = TT, Tt Non taster = tt

Q: In kangaroos, pouched kangaroos (P) are dc bushy tail of unknown genotype so you dec kangaroos have…

A: Given that, P is the dominant allele for pouched kangaroos whereas p is the recessive allele for…

Q: Bokoblins and Moblins are pig-like monsters commonly found around the Kingdom of Hyrule. You…

A: Chi-square (x2) test is performed to accept or reject the null hypothesis. It can be used in…

Q: This question deals with Mendelian Genetics. Read each part carefully before you answer it. In the…

A: Each gene may exists in alternative forms which codes for different version of a particular trait or…

Q: Glory flowers can be tubular shaped (T) or open shaped (t), where T is dominant to t. The flower…

A: A dominant trait is expressed in both homozygous and heterozygous genotypes.

Q: Since the white‑eye trait is X‑linked recessive, what result would you expect when crossing a…

A: A character which express by a recessive gene i .e. the gene is suppressed by dominant gene  is…

Q: What gamete must be donated by the father monster, and what is its probability? a) g l — 12.5% b) g…

A: Gametes are produced by the process of meiosis.

Q: Pea plants have two genes, each expressed with complete domina gene. "Y" codes for a yellow pea,…

A: In the question because there are two traits present hence this cross would be a dihybrid cross. A…

Q: Erminette fowls have mostly light colored feathers with an occasional black one, giving a flecked…

A: In this question, we are given a total progeny of 48 out of which 22 are Erminette, 14 black and 12…

Q: In jellyfish, let's say that long tentacles are produced by a sex-influenced allele that is dominant…

A: Given information In jellyfish, long tentacles are produced by a sex-influenced allele. The allele…

Q: uppose that goats have one gene that codes for color, where A is brown and a is white. The goats…

A: Here given, A is brown and a is white,  B is tall and b is short  Parents - AaBb x Aabb   So,…

Q: Niffler is a creature with a long snout and a coat of black, fluffy fur. They exhibit lots of…

A: If an organism has identical genes on both chromosomes, it is said to be homozygous. If the organism…

Q: Red foxes are a species that has genetic sex determination similar to humans, where females are XX…

A: Dominant genes has quality  that they doesn't need the presence of a comparable gene in the gene…

Q: humerous progený per cross, a lethal allele of a certain the lethal allele is a recessive or…

A: The field of genetic is the study of heredity and the different variations of those genes, which is…

Q: Semen from a promising bull is going to be used for artificial insemination. However, the owner is…

A: Since 35% of the cows in the herd are homozygous dominant for the deadly gene and 65% are…

Q: In a different population of mice in New Mexico, coat coloration is influenced by a single gene…

A: The skin color is encoded by the B gene.

Q: Suppose that goats have one gene that codes for color, where A is brown and a is white. The goats…

A: The alleles that an individual carries are inherited from each parent. The dominant…

Q: Brachydactyly is a genetic condition in which the fingers are abnormally short in heterozygotes.…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: (This one is more complicated). Two true breeding fruit flies are allowed to mate. One fly is…

A: The body color phenotypes in the flies are black and gray. The eye color phenotypes in the flies are…

Q: Vith three COlors: Red, Yellow, and Green. You cross a true-breeding Red line and a true- breeding…

A: The solution of this question can be applied by using basic principles of genetics given by the…

Q: Purple flowers (F) are dominant over white flowers (f). If two heterozygous flowers are crossed,…

A: Dominant allele = F (purple) Recessive allele= f (white) When two heterozygotes are crossed Ff×Ff We…

Q: nite (b) in a certain species of flowering plants. If a tes AaBb) results in a 1 tall and white :1…

A: Given that: AB are dominant i.e.. tall and red . ab are recessive i.e.. short and white. After the…

Q: Suppose a species of tulip has three alleles for the gene that codes for flower color. The CR allele…

A: A trait is a characteristic features that is unique to particular individual . In tulip , there are…

Q: Assume that a cross is made between a heterozygous tall pea plant and a homozygous short pea plant.…

A: The Chi-Square statistic is used for testing relationships between categorical variables. If it is…

Q: Sex determination in birds is different from that in humans. The sex chromosomes in birds are called…

A: Sex ratio is defined as the ratio of males and females in the population. Generally in sexually…

Q: We have crossed true-breeding flies today. Wild type to mutant. Their phenotypes were wt and vg se.…

A: In a genetic experiment involving true-breeding flies, we have crossed individuals with wild-type…

Q: In watermelons there is a gene for colour and a gene for shape located on different chromosomes. The…

A: A test cross is defined as an experimental cross of an organism with a dominant phenotype whose…

Q: In Persian cats hair length can be short or long. Long hair is a recessive condition and this trait…

A: It is given that the long hair is a recessive trait. Let S encodes short hair and it is dominant…

Q: Imagine you cross two closely related plant varieties: Maize and teosinte. You hypothesize that…

A: Hybrid  Hybrid is a product of two different varieties of same or different species.

Q: You know that hamster unicorns (Phodopus monocerus) will be the next big pet craze and are…

A: Mendelian inheritance is defined as the inheritance of specific traits controlled and regulated by a…

Q: genes interest with the dominant alleles being T-tall, H=hairy leaves and P=purple flowers. The…

A: In a trihybrid cross three characters are involve. In the above trihybrid cross the three characters…

Q: With regard to scurs in cattle ( a sex influenced trait) a cow with no scurs whose mother had scurs…

A: Sex-influenced traits are chromosome traits that are influenced by sex. once females have 2…

Q: What will be the phenotypic ratio of the offspring of a purebreed male fly with eosin eyes (CCXw-eY)…

A: A phenotypic ratio is a quantifiable relationship between phenotypes that shows how often the…

Q: You are conducting independent research for your Honors Thesis in a Drosophila research lab.  One of…

A: Introduction A person's phenotype refers to observable characteristics such as height, eye colour,…

Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.