DNA And Genetics (1) Question Preview (ID: 17122)


DNA And Genetics - Middle School - Life Science. TEACHERS: click here for quick copy question ID numbers.

DNA has what shape?
a) twisted ladder
b) double helix
c) spiral shaped
d) All of these are the shapes of DNA

In human reproduction, a baby -
a) Gets half of its chromosomes from the male and half from the female
b) Receives 46 chromosomes from either parent
c) Can inherit only 46 genes
d) Receives 46 chromosomes from both parents

The heredity material that controls all cellular activities is called -
a) ATP
b) Cytoplasm
c) DNA
d) Chloroplast

In guinea pigs, brown fur (B) is dominant over white fur (b). Figure out the possible outcomes if a purebred brown guinea pig is crossed with a purebred white guinea pig. What percentage of the offspring will have white fur?
a) 0%
b) 100%
c) 50%
d) 25%

What are the main components of DNA?
a) Nitrogen bases, sugar, phosphates
b) Nitrogen bases, carbon, sugars
c) Nitrogen bases, sugars, salts
d) Nitrogen bases, oxides, sugars

Size of lips, dimples, and hair color are all this kind of trait.
a) Learned
b) The same in all of the siblings.
c) Inheritable
d)

Cloning uses DNA to make copies of living things.
a) True
b) False
c)
d)

TT, tt, DD, dd are all genotypes that are called
a) purebred, heterozygous
b) purebred, homozygous
c) hybrid, heterozygous
d) hybrid, homozygous

For the phenotype, A tall head (T) is dominant to short (t), what are the possible genotypes?
a) Tall = TT Short = tt
b) Tall = TT, Tt Short = tt
c) Tall = tt Short = TT, Tt
d)

What is an allele whose trait always shows up in an organism when it is present?
a) Hybrid
b) Purebred
c) Recessive
d) Dominant

Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 17122 in the upper right hand corner or click here.

TEACHERS / EDUCATORS
Log In | Sign Up / Register

Help / Support / FAQ




Gaming Links