Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Is the first one AB or ab and the second one 30 cM?
A cross is made between a heterozygote, +++/abc, and a recessive homozygote, abc/abc. Analysis of the progeny gave the following results:
+ + +
450
+ + C
10
a + c
70
+ b c
210
+ b +
65
a + +
200
a bc
460
ab +
15
What is the map distance between the a and c genes?
O 25.12 map units
O 27.71 map units
O 29.39 map units
O 32.53 map units
O None of the above
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An individual with two different alleles at a locus is a(n)
Group of answer choices
A. clone
B. hemizygote
C. homozygote
D.heterozygote
Chapter 13 Solutions
Biology
Ch. 13 - Why is the white-eye phenotype always observed in...Ch. 13 - In an organisms genome, autosomes are a. the...Ch. 13 - What cellular process is responsible for genetic...Ch. 13 - The map distance between two genes is determined...Ch. 13 - How many map units separate two alleles if the...Ch. 13 - How does maternal inheritance of mitochondrial...Ch. 13 - Which of the following genotypes due to...Ch. 13 - Prob. 1ACh. 13 - As real genetic distance increases, the distance...Ch. 13 - Down syndrome is the result of trisomy for...
Ch. 13 - Genes that are on the same chromosome can show...Ch. 13 - The A and B genes are 10 cM apart on a chromosome....Ch. 13 - During the process of spermatogenesis, a...Ch. 13 - Color blindness is caused by a sex-linked,...Ch. 13 - Assume that the genes for seed color and seed...Ch. 13 - A low frequency of calico cats are male (about...
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- page Two genes are 70 MU apart. How often would you expect to see recombinant progeny? Select one: O a. 50% O b. 30% O c. 25% O d. 70% O e. 100% Search or type URLarrow_forwardA cross is made between a heterozygote, +++/abc, and a recessive homozygote, abc/abc. Analysis of the progeny gave the following results: 450 10 a + c 70 + b c 210 + b + 65 a + + 200 abc 460 ab+ 15 What is the map distance between the b and c genes? O9.12 map units O 10.81 map units O 12.14 map units O 13.95 map units ONone of the above PrtScn Home End %23 %24 & 7. 3. 4. 7 W R Y H. K C V この #:arrow_forwardThe pedigree at right shows the expression of a dominant mutation. What is the probability that the child of II-3 and II-4 will express this trait? I II Select one: a. 1/4 b. 0 c. 1 d. 3/4 e. 1/2 12 3 456arrow_forward
- For the pedigree shown here, the disorder is caused by a recessive (g) allele on the X chromosome. Label each of the following individuals with the correct genotype (XGY, XgY, XGXG, XGXg, XgXg). a. Generation I, number 2 b. Generation II, number 2 c. Generation II, number 5 d. Generation III, number 2 e. Generation III, number 6arrow_forwardA tall pea plant with purple flowers (both determined by dominant alleles) is crossed with a short plant with white flowers. there is no linkage of genes. if the tall, purple-flowered plant is heterozygous for both traits, the offspring will be: A 1 purple tall:1 white short B 3 purple tall:1 white short C 9 purple tall:3 purple short:3 white tall:1 white short D 1 purple tall:1 purple short:1 white tall:1 white shortarrow_forwardShort hair (S) in rabbits is dominant over long hair (s). The following crosses are carried out, producing the progeny shown. Give all possible genotypes of the parents in each cross. The Remaining subparts to be solve is Letter D and E.arrow_forward
- If these two individuals with the following characteristics are crossed Parent 1: blood type AB; heterozygous for H gene Parent 2: heterozygous B blood type; hh genotype What is the phenotypic ratio (blood type) of the F, generation? A. 4 AB: 1 A: 1 B: 2 0 B. 2 AB: 2 A: 4 B: no O C. 1 AB: 1 A: 2 B: 4 0 D. 1 AB: 1 A: 1 B: 10arrow_forwardDuring a dihybrid cross involving two linked genes (two-point testcross), 20 flies showed recombinant phenotypes, whereas 480 flies showed the parental phenotypes. How far apart are these linked genes from each other? a. 20 cM b. 7.5 cM c. 4 cM d. 0.04 cM e. 8 cMarrow_forwardA P cross of AAbb x aaBB is performed. An F1 offspring is crossed with an individual that is aabb. Determine which two of the following are the recombinant phenotypes. 1. Recessive a, recessive b 2. Dominant A, recessive b 3. Recessive a, dominant B 4. Dominant A, dominant Barrow_forward
- In tomatoes, round fruit is dominant over elongated fruit, and smooth skin is dominant over fuzzy or peach skin. An RS/rs plant is test-crossed and 1000 progeny are obtained. If the genes have a frequency of recombination of 26%, how many will be elongated and peach skin? A. 370 B. 260 C. 130 D. 740arrow_forwardThe recombination rate of two linked genes is 18%. A testcross is performed between AB/ab and ab/ab genotypes. What is the probability of Ab/ab progeny? A. 0.25 B. 0.50 C. 0.18 D. 0.09 E. 0.41arrow_forwardRed-flowering snapdragons are homozygous for allele R1. White-flowering snapdragons are homozygous for a different allele (R2). Heterozygous plants (R1R2) bear pink flowers. What phenotypes should appear among first-generation offspring of the crosses listed? What are the expected proportions for each phenotype? a. R1R1 × R1R2 c. R1R2 × R1R2 b. R1R1 × R2R2 d. R1R2 × R2Rarrow_forward
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