Posted by Delilah on Wednesday, January 16, 2013 at 8:17pm.
1.
How many chromosomes do human sex cells have? (1 point)
22
43
46
23
2.
The actual genetic makeup of an organism for a particular trait is called the ______. The physical characteristic that trait gives the organisms is called the ______. (1 point)
genotype; phenotype
genome; allele
dominant; recessive
none of the above
3.
Of the following, which represents a homozygous recessive genotype?
(1 point)
TT
Tt
tt
TTT
4.
Structures in organisms that are no longer of use are called ______ structures. (1 point)
homologous
obsolete
vestigial
analogous
5.
Change in the hereditary features of a type of organism over time is ______. (1 point)
growth
biogenesis
spontaneous generation
evolution
6.
Studying the early growth and development of animals provides clues to their shared ancestry; this field of study is called ______. (1 point)
embryology
ecology
radiology
oncology
My answers:
1. 23
2. genotype; phenotype
3. tt
4. vestigial
5. growth
6. embryology
- I don't know - Ms. Sue, Wednesday, January 16, 2013 at 8:18pm
I don't know much about science.
- 7th grade science ms sue please - Delilah, Wednesday, January 16, 2013 at 8:19pm
okay thanks anyway!
- 7th grade science ms sue please - Bri`anna, Thursday, January 17, 2013 at 3:53pm
Connections student? Well, I just took the test;
1 is correct
2 I think is correct
3 is not, it's TT
As for 4, 5, and 6, I'm not sure of.
- 7th grade science ms sue please - PsyDAG, Thursday, January 17, 2013 at 7:06pm
1. 23
2. correct
3. tt
4. correct
5. correct
6. correct
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