Question

A third-grader decided to breed guinea pigs for her school science project. She went to a pet store and bought a male with smooth black fur and a female with rough white hair. She wanted to study the inheritance of those features and was sorry to see that her first litter of eight contained only rough black animals. To her disappointment, the second litter from the same parents contained seven rough black animals. Soon the first litter had begun to produce F2 offspring, and they showed a variety of coat types.

step 1

Before long, the child had 157 F2 guinea pigs. Nine had smooth white coats, 31 had smooth black coats, 29 were rough and white, and 88 were rough and black

Step 2

In an attempt to better understand the genetics of coat colour and texture transmission, the girl now crosses a smooth white F2 female with an F1 male.

QUESTION:
This second cross (F2 female with F1 male) is called a(n) ______

Answer 1

The second cross of an F2 female with an F1 male in genetics is known as a backcross, which is used to explore the inheritance patterns and determine genetic makeup.

Step-by-step explanation:

The second cross involving an F2 female with an F1 male in the context of genetics is referred to as a backcross. A backcross is a breeding experiment in which a hybrid organism is crossed with one of its parents or with the genetically equivalent organism. This technique helps to determine the genetic makeup of the hybrid by examining which traits are passed on from the initial generation (F1) to the subsequent generation (F2) and can reveal the dominance or recessiveness of alleles.