In peas, seeds can be round (R) or wrinkled (r) and either yellow (Y) or green (y) Stem length may result in a tall (T) or dwarf (1) plant. In the cross (parent A) TTYyRr x TtYyRr (Parent B) how many different types of gametes can be produced by parent A? Choose Choose. 1/4 None of the choices how many different phenotypes are possible from the cross? 3/16 4. What proportion of the offspring from the cross in part a would be tall with yellow, wrinkled seeds? Choose If the cross is TtYYRrx ttYYrr what proportion of the offspring would be expected to be tall plants with round, yellow seeds? Choose

In peas, seeds can be round (R) or wrinkled (r) and either yellow (Y) or green (y) Stem length may result in a tall (T) or dwarf (1) plant. In the cross (parent A) TTYyRr x TtYyRr (Parent B) how many different types of gametes can be produced by parent A? Choose Choose. 1/4 None of the choices how many different phenotypes are possible from the cross? 3/16 4. What proportion of the offspring from the cross in part a would be tall with yellow, wrinkled seeds? Choose If the cross is TtYYRrx ttYYrr what proportion of the offspring would be expected to be tall plants with round, yellow seeds? Choose

Name: In peas, seeds can be round (R) or wrinkled (r) and either yellow (Y)
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Description: In peas, seeds can be round (R) or wrinkled (r) and either yellow (Y) or green (y) Stem length may result in a tall (T) or dwarf(1) plant. In the cross (parent A) TTYyRr x TtYyRr (Parent B)how many different types of gametes can be produced by paren

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 5RQ: Imagine that you are performing a cross involving seed texture in garden pea plants. You cross...

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Imagine that you are performing a cross involving seed texture in garden pea plants. You cross true-breeding round and wrinkled parents to obtain F1 offspring. Which of the following experimental results in terms of numbers of plants are closest to what you expect in the F2 progeny? a. 8lOroundseeds b. 8lOwrinkledseeds c. 405:395 round seeds:wrinkled seeds d. 610:190 round seeds:wrinkled seeds
A homozygous tall plant (T) bearing red coloured ( R) flowers is crossed with homozygous dwarf plant (t ) bearing white flowers (r ): Give the possible combinations of the gametes that can be obtained from the F1 generation.
S (smooth) is dominant to s (hairy) L (long pod) is dominant to I (short pod) (Ll is medium length) 7. Given this cross: Yy RR Bb SS LI (male) cross with yy RR Bb Ss Ll (female) a. How many different gametes can be formed by the female plant? b. How many different genotypes are possible in the F1 offspring? c. How many different phenotypes are possible in the F1 offspring? d. What percent of the F1 individuals will be: i. green, bitter, and smooth. ii. hairy, medium, and sweet iii. round, bitter, and long. 8. Two babies in a maternity ward have lost their identity bands, and there is some confusion about their footprint records. Baby #1 is type A blood; #2 is type B blood. If you are one of the mothers and your blood type is 0, which one of the following statements applies. Explain your answer. Neither baby could be yours. The type A baby is yours. The type B baby is yours. Either baby could be yours. 9. In cocker spaniels, the following genotypes and phenotypes are found: AABB =…
Two genes of a flower, one controlling blue (B) versus white(b) petals and the other controlling round (R) versus oval (r)stamens, are linked and are 10 map units apart. You cross ahomozygous blue oval plant with a homozygous white round plant. The resulting F1 progeny are crossed with homozygouswhite oval plants, and 1,000 offspring plants are obtained.How many plants of each of the four phenotypes do youexpect?
In pea plants, flowers may either be axial (A) or terminal (a) flower and purple (P) or white (p). Progenies from a dihybrid cross are as follows: 51 axial purple 75 axial white84 terminal purple 64 terminal white Conduct a COMPLETE chi-square Test to determine of these results support the hypothesis that the parent plant is heterozygous for both traits.
In cucumbers: warty (T) > smooth (t) dull (D) > glossy (d) warty, dull x smooth, glossy P: TTDD X ttdd F1: warty, dull x smooth, glossy TtDd x ttdd If RF between T and D loci known to be 24%, how many total non- recombinant progeny do you expect out of 200 total progeny?
regular (2) are tobed and serrated and potato teaves (4) are broad, smooth, and singte (Image 1). Re. Is dominlant to yellow fruit (). Image 1. Potato leaves (left) and regular leaves (right). A cross is carried out between two pure lines of tomato plants, one having regular leaves and red fruit and the other having potato leaves and yellow fruit. The F1 generation all have regular leaves and red fruit. The F1 individuals are then crossed with one another. Complete a Punnett square to determine the expected F2 progeny on the basis of Mendel's Law of Independent Assortment, which states that the alleles for one gene segregate independently of the alleles for other genes during gamete formation.
In the plant Arabidopsis, the loci for pod length (L, long;l, short) and fruit hairs (H, hairy; h, smooth) are linked16 m.u. apart on the same chromosome. The followingcrosses were made:(i) L H/L H × l h/l h → F1(ii) L h/L h × l H/l H → F1If the F1’s from cross i and cross ii are crossed,a. what proportion of the progeny are expected to bel h/l h?b. what proportion of the progeny are expected to beL h/l h?
In pumpkins, the discoid fruit shape (D) is dominant to the spherical shape (d) and the white color of the shell (B) is dominant to green (b). Suppose the following cross is made: DDBBxddbb...to. If in an F2 320 pumpkins are obtained, how many of them are expected to be...Yo. white-discordant.ii. white-spherical.iii. green-discoidiv. green-spherical.b. If you cross a BbDd plant with a double recessive one and you get 100 pumpkinsWhat proportions do you expect to obtain from each of the following phenotypes?1. white-discordant.2. white-spherical3. green-discoids4. green-sphericalc. Based on your answer, are the genes involved in fruit color and shape linked or independent? Because?
Two plants in a cross were each heterozygous for two gene pairs (AB /ab) whose loci are linked and 30 map units (mu) apart. (Recall that 1 mu is equal to 1% recombination between two genes.) Assuming that crossing over occurs during the formation of both male and female gametes and that the A and B alleles are dominant, determine the phenotypic ratio of their offspring. Part E: What proportion of the offspring of two plants (both (AB/ab ) will be A - B- if the genes are 30 mu apart? Part F: What proportion of the offspring of two plants (both (AB/ab)) will be A - bb if the genes are 30 mu apart? Part G: What proportion of the offspring of two plants (both (AB/ab)) will be aaB- If the genes are 30 mu apart? Part H: What proportion of the offspring of two plants (both (AB/ab)) will be aabb if the genes are 30 mu apart?
In garden peas, yellow seeds (Y)(Y) are dominant to green seeds (y)(y), and inflated pods (I)(I) are dominant to constricted pods (i)(i). Suppose you have crossed YYIIYYII parents with yyiiyyii parents.What are the gametes and f1 offspring? And what is a diagram of the punnet squares.
Two plants in a cross were each heterozygous for two gene pairs (AB/ab) whose loci are linked and 10 map units (mu) apart. (Recall that 1 mu is equal to 1% recombination between two genes.) Assuming that crossing over occurs during the formation of both male and female gametes and that the A and B alleles are dominant, determine the phenotypic ratio of their offspring. Part D If the two genes are 15 mu apart and the plant is (Ab/aB), what proportion of gametes from a signal plant will be ab? Part E What proportion of the offspring of two plants ( both (Ab/aB)) will be A_B_ if the genes are 15 mu apart? Part F What proportion of the offspring of two plants ( both (Ab/aB)) will be A_bb if the genes are 15 mu apart? Part G What proportion of the offspring of two plants ( both (Ab/aB)) will be aaB_ if the genes are 15 mu apart? Part H What proportion of the offspring of two plants ( both (Ab/aB)) will be aabb if the genes are 15 mu apart? How would I solve these?