Download File - Great 7th grade Scientists

“Decoding Genes”
Team Member Names:
Date:
Period:
HINT: Replace the ? with the appropriate word. The questions are in order of how they are
presented in the book.
1.
?
is the process where parents pass on their traits to their kids.
2. Traits that you can see, count, or measure make up the
3. The body uses a special set of directions called
4. These dogs have different
?
5. The
6. The study of
?
?
because their
of a plant or animal.
to build
?
that produce the
?
are called
?
?
.
is called
?
?
8. When I crossed yellow pod and green pod plants, all the
?
and yellow is
?
11. Since
pods.
?
?
to each
?
?
.
?
?
3. ?
copy comes from each parent.
4.
?
alleles hide
13. Mendel’s findings are the
14. The allele for
?
is
called
.
.
?
2. Everyone has ? copies of each ?
.
were
is recessive, the plants need two copies of the yellow ?
make
?
?.
12. From Mendel’s Findings we know:
1.
.
.
10. A plant has ? copies of each gene. These copies are called
But it can only give one
in the ?
are different.
7. ? crossed pea plants with different traits. Then the examined their
9. Green is
?
?.
?
ones.
?
of the science we call
?
to the ?
?
for no dimples.
.
to have
?
15. Some
?
are determined by
16.
?
?
make
?
17.
are determined by a
?
than
?
?
- substances the
gene. Other traits, like height and hair type
gene.
?
how to build each
?
needs to keep working. Genes tell the
.
?
build
?
inside the cell. The directions come from the
, which is the command center of the cell.
18. The
acid.
?
contains
DNA is divided into
19. Line up the human
For each pair, ?
?
?
material or
?
.
?
and you’ll see ? pairs of
?
?
chromosomes came from
20. Each species has a specific number of
. That’s short for deoxyribonucleic
?
, or
?
in total.
?
and the other from
. Mosquitos have
?
.
. Dogs have
?. King crabs have ?.
?
21. This gene gives
22. Genes are made of
?
to make keratin, the
. Two long
?
around each other. They’re held together by small
kinds of bases:
?
?
,
23. Bases pair up in a certain way.
?
?
in your fingernails.
of
?
?
called
?
,
?
, and
pairs with
?
?
and
.
?
spiral
. There are
?
?
.
pairs with
?.
?
24. In 1953,
?
and
discovered the structure of
?
. By
doing this, they won a great scientific race to unravel the puzzle of
?
acknowledged that they couldn’t have done it without
help. She took a special
picture of
using x-ray
25. Our genes make up the
?
. Each
?
.
?
?
our bodies need.
?
?
are long strings of
?
provides a list of the
?
needed to make a
?
?
is
?
. But the list is in code! The code for each
the cell, the
right order.
?
. Both
reads the code and builds the
called
?
bases long. Inside
by connecting
?
in the
26. The human
,
?, ?
?
contains more than
, and
?
27. Scientists determine the
?
genes. They decide the makeup of ?
.
?
?. This process is called
order of the bases of the
?
?
.
28. From
?
to humans, many of the
?
29. Ninety-six ?
of
?
to chimpanzees.
30. The
.
31.
?
?
DNA is
?
between our
?
species are
are almost
?
by
?
the
?
differences in ?
happen when one base turns into another. This changes the
?
example, solar rays and X-rays zap cells with
32. Mutation is only part of the
?
.
33. The diversity of life we see around the
34. Dr. Spencer is studying the
? this year’s flu
35. In a
of many different
?
?
?
condition, it takes
of a
?
. A direct hit can
code. For
?
DNA.
?
.
?
is the other part.
?
is a result of
?
virus. She’ll use the information to
?
in
.
.
?
?work together toward cures for
36. Since the discovery of
?
?
mutant
?
?
conditions.
? and
to see the problem.
?
, genetics has become an
aspect in the study
of ? .
37. Genetic discoveries have influenced conservation,
38. Should we use
.
39. Our
40.
?
?
?
?
?
, and
from living
?
to make
make us different from
?
other…and the ? too.
is not the only thing that causes
?
?
?
for being tall, without enough to
41. The condition called
?
syndrome occurs when a
chromosomes instead of
?
.
exact copies or
?
. Environment is important too.
Even if a person has
?
.
?
, he’ll be short.
child ends up with
?
42.
?
twins are a kind of ?
half grows into a
?
?
. They are
dividing. If a
aren’t supposed to. This
into
?
makes a
with
even
?
?
45. Some
??
?
because each
?
has exactly the same
?
cells when to
?
and when to ?
?, cells will ?
when they
?
.
splits in half. Each
.
43. Many genes are necessary to
44. Genetic
. Very early in development, a
?
?
?
in the
occurs when a
. For example, a
?
occurs in any of the those
that kills
?
?
?
called
?
takes a
from
?
?
The idea is to
?
?
?
could spread to
?
?
and puts it
genome. The gene
don’t have to spray corn
?
plants and could
.
are trying to find cures for
?
from one
was added to the
. The good thing is that
. The bad thing is that the
human
?
damaged or
?
?
genetic diseases using? therapy.
genes with normal
?
.