What is Melanin?
Melanin is a natural skin pigment. Hair, skin, and eye color in people and animals mostly depends on the type and amount of melanin they have. Special skin cells called melanocytes make melanin.
some people make more melanin than others. If those cells make just a little bit of melanin, your hair, skin and the iris of your eyes can be very light. If your cells make more, then your hair, skin, and eyes will be darker.
How many parents are in asexual reproduction?
1
Two peacocks, one with a large colorful tail and one with a smaller less colorful tail are vying for a mate. Who is more likely to find one?
Large colorful tail
What percent of offspring will be yellow?
50%
Are all mutations bad?
No
What does “Chromosomes” mean?
A chromosome is a long DNA molecules and regulates protein production.
Contains organism's genetic information
How many parents are involved in Sexual Reproduction?
Two
Birds call out to establish territory. Would a louder or quieter bird have a larger territory?
Louder bird
Which one would be homozygous?
Ff or FF
FF
What do mutations change?
DNA
What is “artificial selection”?
a process in the breeding of animals and in the cultivation of plants by which the breeder chooses to perpetuate only those forms having certain desirable inheritable characteristics.
What is the major benefit of Asexual Reproduction?
Reproduce quickly and without having to find a mate.
Two caterpillars are sitting on a Green Leaf, which one would have the best chance of survival. The green caterpillar or the Brown one?
The Green Ones
What should be in the “??” box?
aa
3. Scientists learned that white fur color is fox is the result of a mutation in the gene that codes for melanin. If a fox that lives in the woods in Anne Arundel County is born with this mutation, what prediction can be made about the mutation?
A. This mutation would be beneficial because it would help the fox blend into the environment.
B. This mutation would have neutral effects because fur color will not affect the survival of the fox.
C.This mutation would be a harmful mutation because it would make the fox highly visible to predators.
D. There is no way to determine if this mutation would be beneficial, harmful or have no effect on the fox.
This mutation would be a harmful mutation because it would make the fox highly visible to predators.
What does “self-propelled seeds” mean?
Plants that disperse their own seed in order to reproduce.
Which of the following support that foxes are sexually reproducing organisms? Select the BEST answer.
They reproduce in the spring.
They hibernate.
Males and Females can reproduce starting at 6 months old
Their habitat is generally cold
3.
Males and Females can reproduce starting at 6 months old
Larger yellower bananas from a tree are eaten more and seeds are spread more as a result. Is this a positive or negative for that banana plant?
Positive
If the father’s genes are (Bb) green hair and the mother’s genes are (bb) blue hair what chance does the offspring have of getting blue hair?
½ or 50%
Which of the following can increase the rate of mutation?
A. UV Radiation
B. Viruses
C. toxic chemicals
D. All of the above
All of the above
What does Variation Mean
a different or distinct form or version of something.
Which type of Reproduction introduces Genetic Variation?
Sexual Reproduction
If an animal moves to a more suitable environment as seasons change it is called
Migration
Draw a Punnett square with a Yy and yy cross. Show the probability of a Yy offspring.
Mutations can occur naturally or be induced by environmental factors such as radiation or chemicals.
True or False
True