Genetics Unit Test Review 2 Question Preview (ID: 41535)


Genetics Unit Test Review 2. TEACHERS: click here for quick copy question ID numbers.

Is Rr homozygous or heterozygous?
a) heterozygous
b) homozygous
c)
d)

Sandy has blood Type AB and Fred has blood Type O which has a genotype of OO. If Sandy and Fred married and had children, what possible phenotypes could their offspring have? Draw a Punnett Square to find out.
a) Type A= 50% and Type B =50 %
b) Type AB =100%
c) Type O = 50% and AB = 50%
d) Type O = 100%

Hybrid is a term for ___________ and consists of gene pairs with alleles that are different.
a) heterozygous
b) homozygous
c) purebred
d) physical

Purebred is also called _________ and consists of gene pairs with alleles that are the same.
a) homozygous
b) heterozygous
c) hybrid
d) selective breeding

Patrick married Patti, a cute girl. He is a purebred for his tall head shape (T), which is dominant over a short head (t). If Patti has a short-head, what are the chances that their offspring will have a tall head?
a) 100%
b) 75%
c) 50%
d) 0%

In Squidward’s family, a blue body color (B) is dominant to green (b). What genotype would represent a heterozygous blue body color?
a) Bb
b) bb
c) BB
d) GG

Some traits are called sex-linked traits because they are carried on the chromosomes that determine whether the person is male or female. Which of the following two diseases are BEST know for being sex-linked?
a) color-blindness and hemophilia
b) hair color and eye color
c) ingrown toenail and black eye
d) cancer and arthritis

The scientific study of how traits pass from parents to offspring is called __________________.
a) genetics
b) biology
c) physiology
d) genetic engineering

During his lifetime, he collected data about plants include pea plants. He kept notes of the crosses and results of crosses with pea plants. His notes were discovered. They became the basis of what is now called genetics. Who is he?
a) Gregor Mendel
b) Mr. Hutcheson
c) Louis Pastuer
d) Mark Twain

In genetics genes are represented by letters. When gender is represented, the genotype of a male is ____________ and the genotype for a female is ______________.
a) XY and XX
b) MA and FE
c) YX and XX
d) XX and XY

A pedigree chart shows how a trait passes down in a family. The circles represent _____________ and the squares represent ______________.
a) females; males
b) boys; girls
c) males; females
d) dogs; cats

For traits which are X-linked, how would the genotype XR Xr be described? This would be a _____________ (male or female) who is called a ________________________.
a) female; carrier
b) male; carrier
c) male; has the trait
d) female; normal

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