Publication No. 10349
Student Laboratory Kit
Materials Included In Kit
Baby Genes Worksheet
Additional Materials Required
Cut along the dotted lines on each genome set. The twelve cards in each genome should be placed in a zipper-lock plastic bag and labeled Male 1, Female 1, etc. If cards get mixed up, the codes M1, M2, F1, F2, etc. on the cards can be used to separate the cards into male and female again.
This simulation exercise is safe. Follow all normal laboratory safety rules.
The male and female genome materials can be reused many times.
Correlation to Next Generation Science Standards (NGSS)†
Science & Engineering PracticesDeveloping and using models
Asking questions and defining problems
Analyzing and interpreting data
Disciplinary Core IdeasMS-LS1.B: Growth and Development of Organisms
MS-LS3.A: Inheritance of Traits
MS-LS3.B: Variation of Traits
HS-LS1.A: Structure and Function
HS-LS3.A: Inheritance of Traits
HS-LS3.B: Variation of Traits
Crosscutting ConceptsCause and effect
Scale, proportion, and quantity
MS-LS3-2. Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.
Answers to Questions
The answers will vary. Males will have an XY chromosome pattern and females will have an XX chromosome pattern. This is obtained from the color blindness genes.
Answers will vary. The probability of two children in a row being of the same sex is ½ since there are four possible patterns MM, MF, FM, FF—two of these patterns have children of the same sex.
How many genotypes are different in the two children?
Since one allele comes from each parent the child can easily be different than one of the parents, especially if two heterozygous parents have a homozygous recessive child for a given trait.
Answers will vary but since the type A and type B bloods can have various genotypes it is possible to have children that are not Type A or Type B. Similarly Type AB crossed with Type O will not produce either Type AB or Type O children.
Drawings will vary, but the two children will not look identical.
How did you end up with an index finger that is shorter than your ring finger? Is this an inherited trait? Does your mother have the same trait? What about your father?
Gregor Mendel was a pioneer in determining basic principles of heredity breeding garden peas. Mendel cross-pollinated two contrasting, true-breeding varieties. Take purple and while flowers for example. The two true-breeding parents are referred to as the P generation (parental generation) their hybrid offspring are the F1 Generation. Self-pollination of the F1 generation produces the F2 generation.
Figure 2 displays the results of the F2 generation. It also compares the differences between genotype and phenotype. An organism may have the same phenotype while having a different genotype.
This activity assumes an understanding of the basic genetic concepts such as incomplete dominance, sex-linked, sex determination and independent assortment. The twelve traits used in this simulation are described in Table 1.
Baby Genes Worksheet
This lab is a pencil and paper activity and is considered non-hazardous. Follow all normal laboratory safety rules.
Student Worksheet PDF