10-1 & 10-2: Offspring Acquire Genes from Parents by Inheriting Chromosomes, and Fertilization and Meiosis Alternate in Sexual Life Cycles
Key Terms: Heredity, Variation, Genetics, Genes, Gametes, Somatic Cells, Locus, Asexual Reproduction, Sexual Reproduction, Life Cycle, Karyotype, Homologous Chromosomes (Homologous Pair), Sex Chromosomes, Autosomes, Diploid Cell, Haploid Cells, Fertilization, Zygote, Meiosis
IN CLASS READING of Concept 10.1 &10.2: Pages 200-205 in your text.
From page 201:
1.
Explain the importance of
genes to heredity.
2.
State the biological polymer in which the genetic program is written.
3.
Describe what most genes program a cell to do.
4.
State the vehicles that transmit genes from one generation to the next (in animals and plants)
5.
State how many chromosomes humans have in their
somatic cells.
6.
Draw an pair of a homologous duplicated chromosomes and label the sister chromatids and the centromere. (see part of figure 10.3, on page 202)
7. To your drawing, label a
locus of a gene (infer this from your understanding of a locus)
8.
Categorize the following statements as pertaining to
Asexual Reproduction or
Sexual Reproduction: single parent, gives rise to a clone, 2 parents, offspring arise by mitosis, offspring arise by fertilization, results in greater genetic variation, genome of offspring is virtually identical to genome of parent, genetic differences may arise as a result of mutations in DNA
9. Research 1 multicellular, eukaryotic organism not mentioned in your book that can reproduce asexually. Briefly describe it.
From page 202:
10.
Describe what a
life cycle is.
11.
Briefly describe how a
karyotype is made.
12.
Decide whether
homologous chromosomes are
similar or
identical.
13.
Explain why
homologs show a similar staining pattern in a karyotype.
From page 203:
14.
Compare and contrast sex chromosomes with autosomes.
15.
List the sex chromosomes of a female and those of a male.
16.
Describe how the 46 chromosomes found in a human cell are actually 2 sets.
17.
Categorize the following statements as pertaining to
Diploid or
Haploid: 1) Somatic cells. 2) Gametes. 3) n. 4) 2n. 5) 2 copies of each chromosome. 6) 1 copy of each chromosome. 7) Created by mitosis. 8) created by meiosis
18.
Draw the human life cycle including the following terms in their appropriate position: Meiosis, Fertilization, Ovary, Testis, Sperm, Egg, Haploid Gametes, Diploid Zygote, Mitosis and Development, n, 2n, multicellular diploid adults.
19.
Predict the number of chromosomes in a somatic cell of a pea plant if its sperm has 7 chromosomes.
20.
Predict the number of chromosomes in a gorilla sperm cell if the diploid number is 48.
21.
Predict the sex of the organism with the karyotype found
HERE.
22.
Go HERE to see if you can match homologous chromosomes to make a karyotype.