Genetics
Hh, Zz, Xx. Each of these are _______________.
What is heterozygous.
The four answers for a Punnett square are ZZ, Zz, Zz, zz. What are the genotypes for the parents?
What is Zz and Zz.
Sexual reproduction produces offspring that are genetically _____________ to the parents.
Different
Some genes can be hidden or covered up by another. These are considered to be-
Recessive
Jim and Jane are both heterozygous for being tall. What are the chances that they will have a short child?
What is 25% chance.
Various forms of the same gene are
What is alleles?
Who first studied heredity and the passage of traits from one generation to the next and what organism helped him study this?
Who is Gregor Mendel and pea plants?
Asexual reproduction produces offspring that are genetically ____________ to the parent.
Identical
What is the punnett square used for?
To determine the outcome of genetic crossings.
What are the threadlike structures of DNA that carry genes called?
Chromosomes
Identify 3 differences between prokaryotes and eukaryotes.
What is eukaryotes have a nucleus, prokaryotes do not. Prokaryotes are smaller in size, eukaryotes are bigger in size. Eukaryotes are complex, prokaryotes are simple. Prokaryotes lack many organelles, eukaryotes contain many organelles.
The two types of cells needed during sexual reproduction
What is sperm and egg?
If you have dimples; the dominant allele (D) produces dimples, while the recessive allele (d) results in no dimples. Igor has dimples, but his mom does not. He marries Brunhilda, who does not have dimples. What is the probability that their first born child will have dimples?
50%
Tim and Jenny both have dark skin, but each of them carry a recessive trait for light skin. What are the chances that their children will have dark skin? Light skin?
What is 75% dark skin and 25% light skin.
The physical trait observed in an offspring is known as it's -
Phenotype
Jimmy has a big nose. His genotype is GG. Sally also has a big nose. Her genotype is Gg. What are the possibilities for their children's genotypes?
What is GG, GG, Gg, Gg
Budding, regeneration, and binary fission are all examples of what type of reproduction?
Asexual reproduction
What do we call the genetic make up of the individual, represented by a set of letters?
Genotype
Identify two differences between asexual and sexual reproduction.
Asexual reproduction requires just one parent. Offspring is identical to the parent. Offspring is a result budding, regeneration or binary fission.
Sexual reproduction requires two parents. Offspring is genetically diverse from the parents. Offspring is a result of meiosis.
Long ears are dominant (E) in rabbits. If one parent is homozygous dominant for the long ear trait and the other homozygous recessive (e), what is the only possible genotype of the offspring?
Ee
Two dark brown rabbits have four offspring. Three of the offspring are dark and one is white. What does this tell you about the parents' genes for fur color?
Dark brown is dominant and white fur is recessive. Both parents are heterozygous.