In humans, Tongue roller and widows peak are dominant over non-tongue roller and straight hairline.  A heterozygote in both regards (for both tongue roller and hairline) reproduces with a similar heterozygote (they have the same genotype as the other parent).  What is the chance of any one child having the same phenotypes as the parents?

Q: A heterozygous free-lobed man is mated to a heterozygous free-lobed woman. What are the genotypes…

A: Genotype is the genetic makeup of an organism.  It consists of 2 alleles in an individual.

Q: The picture below represents a G1 cell from a newly discovered species that uses the X/Y sex…

A: The cell is in G1 phase and hence it undergoes the S phase to duplicate the DNA. Thus, homologous…

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: Following a cross between two, dihybrid, heterozygous individuals, what fraction of the offspring…

A: In the question, it is given that the cross is made between the two dihybrid heterozygous…

Q: A human female who is heterozygous of the sex-linked trait causing red-green color blindness marries…

A: As a sex-linked characteristic, colour blindness is caused by a gene which is found on the sex…

Q: Discuss the process of aromatizing (how does this happen)? And why doesn't this happen in genetic…

A: * Aromatization is the biochemical process in which aromatase Enzyme catalyzes the conversion of…

Q: A cross between an orange-brown male and a homozygous black female produce four kittens. What is the…

A: Given information The cross is between an orange-brown male and a homozygous black female. Black…

Q: A heterozygous green eyed monster is crossed with a purple eyed monster. a)What proportion…

A: Organisms can be homozygous or heterozygous for a gene. An organism can be homozygous dominant if it…

Q: Gene A has three possible alleles (A1, A2, A3), gebe B has four possible alleles ( B1 - B4), and…

A: The hereditary currency of a cell is the gene. Every gene carries the genetic information from the…

Q: The bald phenotype which is due to a dominant autosomal gene the expression of which is sex…

A: Sex influenced trait are the traits that are controlled by sex chromosome but are exhibited on the…

Q: On average, what fraction of the genome in the pairs of humans would be exactly the same if no…

A: 1. The father donates one-half of his genome to his child. Therefore, the similarity between the…

Q: Proband Sex-linked Brackets Arabic numerals Heterosis III E E Depict the birth order in a generation…

A: An illustration of the biological connections between a creature and its predecessors is called a…

Q: Suppose that a female who is colorblind mates with a male who is not For (a) and (b), make sure to…

A:

Q: The genetic identity of the female parent is RrGg and the genetic identity of the male parent is…

A: The objective of this question is to understand the simultaneous transmission of two genes from the…

Q: Table 8.1 shows that Turner syndrome occurs when an individual inherits one X chromosome but lacks a…

A: Chromosomal deletion syndrome occurs when whole or part of chromosomes are missing. Turner Syndrome…

Q: ● ● ● 4.1 3. /1/17 Consider the selfed offspring of a AaBbCcDd individual: What is the probability…

A: In the given question, we are given the genotype of the F1 individual that is AaBbCcDd. In F2…

Q: When crossing the mythical one-horned snail (Snaiun) you notice that blue (B) is dominant to…

A: Given: In one-horned snail: Blue - dominant - B and Green - recessive - b Long - dominant - L and…

Q: A color-blind woman with Turner syndrome (XO) has a father who is color blind. Given that the gene…

A: Given that the gene for the color-blind condition is recessive and X-linked and a color-blind woman…

Q: A person is heterozygous for the Freckles phenotype (Ff) and also heterozygous for the PTC-tasting…

A:

Q: In mice the autosomal genotype yy is for gray fur, YY is for brown fur and Yy is for yellow fur.…

A: DNA ( deoxyribonucleic acid) is the genetic material that the organism inherits from the parental…

Q: Female pig Emmy Lou (straight tail, white-haired) with the haplotype cH/Ch was mated to a…

A:

Q: In a cross between two, dihybrid, heterozygous individuals, what fraction of the offspring will be…

A: dihybrid organism is one that is heterozygous at two different genetic loci.

Q: In a cross between fair skin, black hair (heterozygous for all these traits) with brown skin, red…

A: This cross involves two traits. The dominant may be homozygous or heterozygous whereas recessive…

Q: What is the probability that the parents below will produce the indicated offspring?  (Assume all…

A: AaBBDdggHhNn x AAbbDdGgHhNn   This is a hexahybrid cross. For simplification, convert it into 6…

Q: In the cross between a female AaBbccDdee and male AabbCcDdee, what proportion of the progeny are…

A: In this type of genetic cross, each gene is crossed separately and probability of the desired…

Q: Ragweed hay fever (R) is dominant to the lack of allergy (r). A man who doesn’t suffer from ragweed…

A: Given: Ragweed hay fever (R) is dominant to the lack of allergy (r). Man - rr woman - Rr (Her mother…

Q: there are 120 pink flowers and 112 white collected as a result of the second filial generation. What…

A: Mendel performed his famous experiments on the pea plant and gave the law of inheritance. But it has…

Q: Assume that color blindness is a recessive character on the X chromosome. A man and woman with…

A: Introduction  Inheritance referred to the transmission of character/traits in the form of gene from…

Q: What is the phenotype and genotype of offspring in the following conditions? (use the Punnett…

A: ABO blood group system consists of four types of blood groups - AB, O, A and B. ABO blood group is…

Q: One gene has alleles A and a: another gene has alleles B and b. For each of the following genotypes,…

A: Every character is controlled by a gene which has two alleles. The dominant allele can express…

Q: brown eyes (B) are dominant over blue. A brown eyed man marries a blue-eyed (b) woman and they have…

A: The organisms with two same alleles at a genetic locus is called as a homozygote. The organism with…

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: Two goats are mated together. One is tall and brown and of unknown genotype. The other is a short…

A: Introduction :  A test cross is defined as a cross which is used to test whether an individual is…

Q: Hemophilia is a disease caused by a recessive allele (h), which is found on the X chromosome,…

A: Given that, hemophillia is X-linked recessive disorder. Also, a normal man marries a woman that is…

Q: On average, what proportion of the genome in the following pairs of humans would be exactly the same…

A: Homologous chromosomes are a pair of chromosomes, each coming from each of the parent, mother and…

Q: If the man, from the previous question, is heterozygous for type A blood and the woman, from the…

A: The blood group is determined by gene I. Gene I have different alleles, these are: IA = It…

Q: The picture below represents a G1 cell from a newly discovered species that uses the X/Y sex…

A: Meiosis results in the formation of four haploid cells from one diploid cell.

Q: The image shows a pair of homologous chromosomes from a single parent before gamete production. M1…

A: Genetic linkage is a study which shows us the  genes or alleles which are close to each other on a…

Q: When Bridges crossed white-eyed females with red-eyed males, he obtained a few red-eyed males and…

A: Genetics is the study of inheritance of genes among the generations that deals with heredity and…

Q: A red-eyed (dominant) female with a grey (dominant) body is crossed with red-eyed (dominant) male…

A: The objective of the question is to deduce the genetic identity of the parent flies based on the…

Q: What progeny would result from crossing a homozygous rose-combed hen with a homozygous pea-combed…

A: A gene is a unit of genetic material and alleles are the alternative form of genes present on the…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.