In canaries the green variety (with black eyes) is dependent upon a dominant X-linked gene (B), and the cinnamon variety (with red eyes) on its recessive allele (b). A cinnamon male is mated to a homozygous green female. What would be the phenotype of the F1 and the F2 generations?
Added by Lisa A.
Step 1
In this scenario, the coloration of canaries is determined by an X-linked gene. The green coloration (with black eyes) is dominant and is represented by the allele "B", while the cinnamon coloration (with red eyes) is recessive and represented by the allele "b". Show more…
Show all steps
Your feedback will help us improve your experience
Josee Pacheco and 78 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
In humans, red-green color blindness is determined by an X-linked recessive allele ( $a$ ), whereas eye color is determined by an autosomal gene, where brown ( $B$ ) is dominant over blue ( $b$ ). a. What gametes can be formed with respect to these genes by a heterozygous, brown-eyed, color-blind male? b. If a blue-eyed mother with normal vision has a brown-eyed, color-blind son and a blueeyed, color-blind daughter, what are the genotypes of both parents and children?
In parrots, red is the dominant color and yellow is recessive. If a heterozygous dominant red parrot mates with a homozygous recessive yellow parrot, what are the genotypes and phenotypes of the F1 generation of their offspring?
Madhur L.
Two fruit flies with eyes of the usual red color are crossed, and their offspring are as follows: 77 red-eyed males, 71 ruby-eyed males, 152 red-eyed females. The allele for ruby eyes is a. autosomal (carried on an autosome) and dominant. b. autosomal and recessive. c. sex-linked and dominant. d. sex-linked and recessive.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD