Bio 235 Comprehensive Final Practice
Exam Questions and Answers 100%
Pass
How many bivalents form during prophase of meiosis I in the primary
oocyte of the gray wolf (canis lupis) which has 78 chromosomes in its
diploid cells? - ✔✔39(bivalent is made of two chromosomes, meiosis I is
before reduction)
In meiosis, homologous chromosomes pair and crossover during ________,
and bivalents line up on the equatorial plate of the cell during
______________. - ✔✔metaphase I, metaphase II. **
In a cross of AABB x aabb, how frequent are the individuals displaying the
dominant trait for both genes in the F1 offspring? - ✔✔100%
1
100% Pass Guarantee Katelyn Whitman, All Rights
, The phenomenon in which a single gene is responsible for both salty sweat
on the skin and thick mucus in the lungs, is described as: -
✔✔codominance.
As a horticultural breeder, you travel to Spain to collect wild daffodil
(Narcissus pseudo-narcissus) plants for your breeding work. Among your
collection, there are two white-flowered plants, rare mutants of this
normally yellow-flowered species. When you cross these two white-
flowered plants, you obtain an F1 progeny that is uniformly yellow-
flowered. The two white-flowered mutants complement one another,
because: - ✔✔They have mutations in two different genes of the same
biochemical pathway.
You obtained an all purple-seeded F1 progeny from the cross of two white-
seeded maize plants. When you cross two purple-seeded F1 plants, you
obtain an F2 population in which seed color segregates 9 people: 7 white
(see below): What type of inheritance are you dealing with? -
✔✔Complementary Gene Action
2
100% Pass Guarantee Katelyn Whitman, All Rights
Exam Questions and Answers 100%
Pass
How many bivalents form during prophase of meiosis I in the primary
oocyte of the gray wolf (canis lupis) which has 78 chromosomes in its
diploid cells? - ✔✔39(bivalent is made of two chromosomes, meiosis I is
before reduction)
In meiosis, homologous chromosomes pair and crossover during ________,
and bivalents line up on the equatorial plate of the cell during
______________. - ✔✔metaphase I, metaphase II. **
In a cross of AABB x aabb, how frequent are the individuals displaying the
dominant trait for both genes in the F1 offspring? - ✔✔100%
1
100% Pass Guarantee Katelyn Whitman, All Rights
, The phenomenon in which a single gene is responsible for both salty sweat
on the skin and thick mucus in the lungs, is described as: -
✔✔codominance.
As a horticultural breeder, you travel to Spain to collect wild daffodil
(Narcissus pseudo-narcissus) plants for your breeding work. Among your
collection, there are two white-flowered plants, rare mutants of this
normally yellow-flowered species. When you cross these two white-
flowered plants, you obtain an F1 progeny that is uniformly yellow-
flowered. The two white-flowered mutants complement one another,
because: - ✔✔They have mutations in two different genes of the same
biochemical pathway.
You obtained an all purple-seeded F1 progeny from the cross of two white-
seeded maize plants. When you cross two purple-seeded F1 plants, you
obtain an F2 population in which seed color segregates 9 people: 7 white
(see below): What type of inheritance are you dealing with? -
✔✔Complementary Gene Action
2
100% Pass Guarantee Katelyn Whitman, All Rights
