Molecular Basis of Inheritance Questions

Biology

Molecular Basis of Inheritance Solutions

When biologists speak of a UNIVERSAL GENETIC CODE they are referring to the fact that, in nearly all organisms: O A. The DNA sequences are identical O B. RNA information is transcribed o C. RNA specifies proteins the same way in all organisms D. Phenotype is dependent upon genotype

Biology

Molecular Basis of Inheritance Solutions

In the 1920s, a dye (now called Feulgen stain) was developed that bound DNA in direct proportion to the amount of DNA present in cells. Upon binding, the DNA would gain in color intensity. This DNA staining technique A) provided circumstantial evidence that DNA is the genetic material. B) definitively proved that DNA is the genetic material. C) demonstrated that all species have the same amount of nuclear DNA. D) confirmed that DNA is an important component of mitochondria and chloroplasts. E) led to skepticism that DNA is the genetic material.

Biology

Molecular Basis of Inheritance Solutions

Which kind of genetic element has repeated DNA with units composed of 2 to 6 nucleotides, copied from a few to about 100 times? (A) minisatellite (B) intron (C) microsatellite (D) transposon (E) satellite

Biology

Molecular Basis of Inheritance Solutions

Geneticists have discovered the existence of meiotic drive genes, which have alleles that, when present in a heterozygous state, are able to become incorporated into much more than 50 percent of the gametes. As a result, the offspring ratios are not what Mendel would have predicted. Which statement about these meiotic drive genes is true? A) They violate the law of independent assortment. B) They violate the law of equal segregation. C) They alter dominance relationships. D) They alter phenotypes. E) They are an example of blending inheritance.

Biology

Molecular Basis of Inheritance Solutions

Rosalind Franklin's X-ray diffraction images taken in the 1950s most directly support which of the following claims about DNA? (A) The ratios of base pairs are constant. (B) The nucleotide sequence determines genetic information. (C) The two strands of DNA are antiparallel. (D) The basic molecular structure is a helix.

Biology

Molecular Basis of Inheritance Solutions

A large population of animals is genotyped for many SNP loci across the nuclear genome. A high level of polymorphism is found at SNP loci over most of the genome. But on one chromosome, a particular long haplotype (a set of specific SNP alleles) is found at high frequency, and is homozygous in many individuals. Which of the following circumstances could help explain this situation? Select all correct answers; partial negative scoring for incorrect answers. A) The chromosome carries a transmission ratio distortion system. B) The chromosome has a higher mutation rate than the rest of the genome. C) The chromosome carries an allele that was recently subject to strong positive selection. D) The chromosome carries an inversion relative to other homologous chromosomes in the population. E) The population was subject to a recent bottleneck and founder effect. F) The chromosome was recently introduced from a different species.

Biology

Molecular Basis of Inheritance Solutions

Answer the following using complete sentences. a) How did Mendel's work gradually gain acceptance. b) Describe how a cross between two closely related organisms may result in genetic problems. c) Are there any advantages in breeding organisms from closely related species? Explain.

Biology

Molecular Basis of Inheritance Solutions

Last edit was 4 days ago Theme Transition Within a population of butterflies, the color brown (B) is dominant over the color white (b). And, 40% of all butterflies are white. Given this simple information, which is something that is very likely to be on an exam, calculate the following: A. The percentage of butterflies in the population that are heterozygous. B. The frequency of homozygous dominant individuals. O Sign out

Biology

Molecular Basis of Inheritance Solutions

Since the X chromosome contains genes that are vital for normal development, no human baby has been born O with two X chromosomes without an X chromosome O with three X chromosomes with one X chromosome

Biology

Molecular Basis of Inheritance Solutions

Labrador retrievers come in three different colors, such as black, brown (chocolate), and yellow (golden), due to interplay between two genes (epistasis). One of them controls the color of the coat, where black coat (B) is dominant to brown (b). The other gene, however, regulates whether or not color will be produced and has dominant (E = black or brown is produced) and recessive (e = yellow is produced) alleles. Which of the following statements is CORRECT about the genetics of coat color in Labradors? OBbEe will be brown O BBee will be yellow O bbЕe will be black O bbee will be brown

Biology

Molecular Basis of Inheritance Solutions

Question 32 2. Referring to the template DNA sequence below, if DNA polymerase III moves from right to left acra the paper, what would be the sequence of the lagging daughter strand? S' ATGTAAGCGTAGCTGTGA 3' 3 TACATTCGCATCGACACT S' O 'ATGTAAGCGTAGCTGTGA 5 OS TCACAGCTACGCTTACATS O 3 TACATTCGCATCGACACTS OS ATGTAAGCGTAGCTGTGA 3'

Biology

Molecular Basis of Inheritance Solutions

If there was a mutation at the splice site and splicing could not take place, what will happen to the mRNA? o It will be shorter than a normal mRNA It will be longer than a normal mRNA It is not possible to determine the effect of this mutation on the mRNA o It will be the same length as the pre-mRNA