Exam 1 - Outline 4 Flashcards
Variety and Stability of Living Things:
Variation-
- There are many different kinds of __________
- __________ within each kind of organism
- organisms
- Variability
Variety and Stability of Living Things:
Stability
1. We have a great amount of __________ within kinds of organisms
stability
Variety and Stability of Living Things:
Genetics/DNA (__________)
- Differences in DNA give variety
- Similarity in DNA give stability
deoxyribonucleic acid
Variety and Stability of Living Things:
Genetics/DNA (deoxyribonucleic acid)
- Differences in DNA give __________
- Similarity in DNA give __________
- variety
- stability
Variety and Stability of Living Things:
Genetics/DNA (deoxyribonucleic acid)
- __________ in DNA give variety
- __________ in DNA give stability
- Differences
- Similarity
-Chromosome Characteristics-
__________ :
a. Long, thread-like (shaped) molecule tightly coiled into chromosomes
b. In eukaryotic cells, DNA is mostly found in the nucleus of each cell
DNA
-Chromosome Characteristics-
DNA:
a. Long, thread-like (shaped) molecule tightly coiled into __________
b. In __________ cells, DNA is mostly found in the nucleus of each cell
- chromosomes
- eukaryotic
-Chromosome Characteristics-
DNA:
a. Long, __________ (shaped) molecule tightly coiled into chromosomes
b. In eukaryotic cells, DNA is mostly found in the __________ of each cell
- thread-like
- nucleus
-Chromosome Characteristics-
Chromosomes
a. DNA molecule
b. Every species has a specific number of __________ (come in pairs)
chromosomes
-Chromosome Characteristics-
Chromosomes
a. DNA molecule
b. Every species has a specific number of chromosomes (come in __________ )
pairs
-Chromosome Characteristics-
number of chromosomes:
Humans = ___ (___ pairs)
- 46
- 23
Number of chromosomes does NOT indicate organism __________
complexity
__________ -
-Specific regions of DNA located literally on specific chromosomes and any one chromosome can have hundreds or thousands of genes arranged in a line along the DNA strand
Genes;
Genes;
-Specific regions of DNA located literally on specific __________ and any one chromosome can have hundreds or thousands of genes arranged in a line along the __________ strand
- chromosomes
- DNA
Genes;
-Specific regions of DNA located literally on specific chromosomes and any one __________ can have hundreds or thousands of __________ arranged in a line along the DNA strand
- chromosome
- genes
Diploid (___) = 2 of each kind of chromosome
- “___” = number of different kinds of chromosomes
- 2n
- n
Diploid (2n) = 2 of each kind of __________
- “n” = number of different __________ of chromosomes
- chromosome
- kinds
__________ (2n) = 2 of each kind of chromosome
- “n” = number of different kinds of chromosomes
Diploid
Diploid (2n)
- Humans have ___ chromosomes, meaning we have 23 different kinds chromosomes and 2 of each __________
- 46
- kind
Diploid (2n)
- Humans have 46 chromosomes, meaning we have ___ different kinds chromosomes and ___ of each kind
- 23
- 2
Diploid organisms : __________ (mostly)
animals