Using genetic crosses to analyze a stickleback trait lab answers

Asked by admin @ 05/11/2021 in Biology viewed by 312 People

EXPERIMENT 1: PUNNETT SQUARE CROSSES Part 1: Post-Lab Questions 1. Set up and complete Punnett squares for these crosses (remember Y = yellow, y = blue): a. YY and Yy b. YY and yy 2. Answer these questions: a. What are the resulting phenotypes? b. Are there any blue kernels? c. How can you tell whether or not there are blue kernels? 3. Set up and complete a Punnett square for a cross of two of the F1 from Step 1 (above). 4. Answer these questions: a. What are the genotypes of the F2 generation? b. What are their phenotypes? c. Are there more or fewer blue kernels than in the F1 generation? 5. Identify the four possible gametes produced by the following individuals (S = smooth, s = wrinkled): a. YY Ss: b. Yy Ss:

Answered by admin @ 05/11/2021

2. Answer: a. Resulting phenotypes: 100% Yellow.

b. No, there are not blue kernels.

c. All kernels are yellow because the yellow allele (Y) is

dominant over blue allele (y).

Explanation: Crosses a (YY x Yy) and b (YY x yy) result in yellow offspring with genotypes: 1) Dominant homozygote (YY) and 2) Heterozygous (Yy).

4. Answer: a. Genotypes: YY (25%) , Yy (50%) and yy (25%).

b. Phenotypes: Yellow (75%) and blue (25%).

c. There are more blue kernels in the F2 than in the F1.

Explanation: Crosses between F1 members (Yy x Yy) result in yellow and blue offspring with genotypes: 1) Dominant homozygote (YY, 25%) 2) Heterozygous (Yy, 50%) and 3) Recessive homozygote (yy, 25%).

5. Answer: a. Ys and YS

b. YS, yS, Ys, ys.

Explanation: The yellow and smooth individuals with genotype (YYSs) can produce two different gametes: Ys (Yellow and wrinkled) and YS (Yellow and smooth). The yellow and smooth individuals with genotype (YySs) can produce four different gametes: YS (yellow ans smooth), yS (Blue and smooth), Ys (Yellow and wrinkled) and ys (Blue and wrinkled).

Amoeba sisters video recap monohybrid crosses mendelian inheritance answer key

Asked by admin @ 30/11/2021 in Biology viewed by 848 persons

Amoeba Sisters Amoeba Sisters Video SELECT Recap: Incomplete Dominance, Codominance, Polygenic Traits, and Epistasis (Non-Mendelian Inheritance) AP Codominance can be observed in some breeds of chicken. Black chickens can result …

Lesson 4 analyzing key ideas in a text answer key

Asked by admin @ 29/10/2021 in English viewed by 516 persons

Plz Help Me! For this assignment, you will use what you have learned throughout the lesson to analyze two arguments. On September 26, 1960, John F. Kennedy and Richard Nixon …

Which trait is determined by both genetics and the environment

Asked by admin @ 02/08/2021 in Biology viewed by 298 persons

Which trait is determined by both genetics and the environment? eye color athletic ability blood type a scar A.eye color B.athletic ability C.blood type D.a scar

Analyze the map below and answer the question that follows

Asked by maham237 @ 28/05/2021 in Geography viewed by 321 persons

A.Spain B.England C.France D.Portugal

Analyze the image below and answer the question that follows

Asked by maham237 @ 22/05/2021 in Health viewed by 505 persons

A horizontal neuron. The large, leafy branches on the left are labeled 1. The large body on the left is labeled 2. The chain between the sides is labeled 3. …

Monkey's paw analyzing the text answers

Asked by maham237 @ 05/01/2021 in English viewed by 296 persons

Identify a central theme or idea of"The Monkey's Paw" and analyze the way plot, character, and setting help develop this theme.

Crossing over is a major mechanism for generating genetic variation

Asked by admin @ 26/11/2021 in Biology viewed by 267 persons

Sexual reproduction in eukaryotes increases genetic variation. In prokaryotes, transformation, transduction, and conjugation are mechanisms that increase genetic variation. A fundamental difference between the generations of genetic variation in the …

A support used to hold a variety of lab equipment

Asked by admin @ 22/11/2021 in Chemistry viewed by 286 persons

These five pieces of lab equipment would hold a test tube in a beaker of boiling water above a Bunsen burner 1. ring stand 2. iron ring 3. wire gauze …

Suppose a genetic algorithm uses chromosomes of the form

Asked by admin @ 23/08/2021 in Computer Science viewed by 336 persons

? Suppose a genetic algorithm uses chromosomes of the form x = abcdefgh with a fixed length of eight genes. Each gene can be any digit between 0 and 9. …

How could a pedigree be used by a genetic counselor

Asked by maham237 @ 10/07/2021 in Biology viewed by 241 persons

Becton labs inc produces various chemical compound for industrial use

Asked by maham237 @ 29/06/2021 in Business viewed by 295 persons

One compound, called Fludex, is prepared using an elaborate distilling process. The company has developed standard costs for one unit of Fludex, as follows: Standard Quantity Standard Price Standard Cost …

Which process is similar to binary fission? genetic variation crossing over meiosis mitosis

Asked by maham237 @ 13/01/2021 in Biology viewed by 333 persons

Everyday use by alice walker answers

Asked by maham237 @ 09/01/2021 in English viewed by 328 persons

Instructions:Select the correct answer. In Alice Walker's "Everyday Use," what does Dee mean when she says, "Maggie can't appreciate these quilts! She'd probably be backward enough to put them to …

Heat transfer lab answers.

Asked by maham237 @ 03/01/2021 in Chemistry viewed by 666 persons

ANSWER FOR: How did the lab activities help you answer the lesson question "How do the processes of conduction, convection, and radiation help distribute energy on Earth?" What did you …

Heat transfer lab answers

Asked by maham237 @ 03/01/2021 in Chemistry viewed by 326 persons

ANSWER FOR: How did the lab activities help you answer the lesson question "How do the processes of conduction, convection, and radiation help distribute energy on Earth?" What did you …