All the offspring of a cross between a black-eyed Mendelian and an orange-eyed Mendelian have black eyes. What is the expected phenotypic ratio of a cross between two orange-eyed Mendelians?

A) 3 black-eyed:1 orange-eyed
B) 0 black-eyed:1 orange-eyed
C) 1 black-eyed:3 orange-eyed
D) 1 black-eyed:0 orange-eyed


Answer: B) 0 black-eyed:1 orange-eyed

Biology & Microbiology

You might also like to view...

Invertebrates have an adaptive immune and an innate immune system

a. True b. False

Biology & Microbiology

Which of the following statements concerning ATP is FALSE?

a. It is a nucleotide.

b. It stores energy for long periods. c. It is called the energy currency of the cell. d. It contains phosphate groups joined in a series. e. It contains phosphate groups joined by unstable bonds.

Biology & Microbiology

Some organisms are able to reproduce both sexually and asexually.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The Bowman's capsule, the proximal convoluted tubule, and the distal convoluted tubule are in the cortex of the kidney.

a. true b. false

Biology & Microbiology