Biology question and answers for November 25, 2023
- Q Two heterozygotes are mated in a monohybrid cross. What is the best description of the resultant offspring? 50% of offspring will have the dominant phenotype and 50% will have the...
- Q Where DNA replication occurs in animal cellsadenineantiparallelchainreactioncytosinedeoxyriboseFranklinhelixhydrogenleadingnucleotidenucleuskazakipolymeraserepairsemiconservative
- Q Please explain how type 4 collagen gene mutations result in appearance of proteins and blood cells in urine.
- Q In cats, black fur color is caused by an X-linked allele; the other allele at this locus causes orange color. The heterozygote is tortoiseshell, which has black and orange fur....
- Q Two linked genes studied by Professor Barrett's lab control style length in a plant with an epistatic interaction, where long-styled plants are homozygous ssmm, mid-styled plants require at least one...
- Q In pea plants, flowers can be purple (P) or white (p). In a field of peas, you count 13 plants with white flowers and 202 plants with purple flowers.A. What...
- Q Which is not a good example of incomplete dominance? (A) A parent with red flowers and a aparent with white flowers produce a pink flower offspring.com B A parent with...
- Q Assume that person number 1 is homozygous for each trait and is male. Assumethat person number 128 is female. What would be the characteristics of childrenborn from a marriage between...
- Q Annette, an avid geneticist, crossed a male Siamese cat of genotype A/a; B/b; C/c; d/d; E/e with a female Siamese cat of genotype a/a; B/b; c/c; d/d; e/e. What is...
- Q 6) A genetic map between three genes (A, B, and C) is shown below, where the degree ofinterference is known to be 0.5. A cross is performed between two parental...
- Q A gene in mice is known to show recessive lethality but also has dominant coat coloureffects, where the presence of one copy of a particular allele will result in a...
- Q Evaluate the following statements, and select those that correctly apply to the properties of microscopes.The degree of contrast between a specimen and its surroundings is enhanced by theuse of special...
- Q A type of rickets is a X-linked dominant trait. If a female with rickets and an unaffectedmale have a daughter, what are the chances that the daughter will inherit this...
- Q Red-green Color-blindness is sex-linked recessive. Two parents with normal colorvision have a color-blind child. Give the genotype of both parents.XDXD and XDYXDXd and XDXDxDxd and XDyxdxd and XDY
- Q Mrs. Smith has a baby named Jessica. She believes one of two men can be the father of her child. A paternity test is done and the results are shown...
- Q In his famous 1928 experiments, Griffith discovered the principle of transformation. He used strains of bacteria that killed mice () or ones that kept them alive (R). Which of the...
- Q What conclusions can you draw from comparing the two graphs on page 4 of the worksheet? (select all that apply)In Arizona, there is no selective advantage to light- or dark-colored...
- Q On page 4 of the worksheet, compare the two graphs, Mouse Population in New Mexico and Mouse Population in Arizona. What canbe determined by the data? (select all that apply)The...
- Q A scientist is trying to determine the relationship between clams, snails, and squid. When she generates a molecular clock, she is surprised to see that clams and squid are more...
- Q A woman has a rare Mendelian abnormality of the eyelids called ptosis, which prevents her from opening her eyes completely. This condition is caused by a dominant allele, Z. The...
- Q The following statement are all false except for onea. Meiosis create genetic diversity during prophase I (crossing over) and anaphase I (independant assortment of homologouschromosomes)b. Meiosis create genetic diversity during...
- Q Concordance refers topercentage of monozygotic twin pairs in which both express the trait.percentage of monozygotic twin pairs in which neither express the trait.percentage of twin pairs in which both express...
- Q Heritability of a trait can change becausethe heritability in a family changes with the number of children.a person can consciously change her or his heritability.the environment can change.genes mutate.
- Q In cats and rabbits, an autosomal recessive mutation causes soft curly fur, called the rex coat. The dominant allele R causes straight fur.An autosomal recessive mutation causes floppy ears, compared...
- Q Dimples is an autosomal dominant trait and no dimples is recessive.Brown eye color is autosomal dominant, and and blue eye color is recessive.If parents have Dd Bb and Dd bb...
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