Term
| two types of reproduction |
|
Definition
|
|
Term
| 4 types of asexual reproduction |
|
Definition
| binary fission, budding, gemmulation, fragmentation |
|
|
Term
| the body of the parent divides by mitosis into two completely different but equal parts |
|
Definition
| binary fission, common in bacteria and protozoa |
|
|
Term
| the nucleus divides multiple times before cytoplasm is divided, example? |
|
Definition
| multiple fission, malaria |
|
|
Term
| an unequal division of the organism, example? |
|
Definition
| budding, hydra and anemones |
|
|
Term
| the formation of a new individual from a clump of cells surrounded by a resistant capsule aka a gemmule....example? |
|
Definition
| gemmulation, freshwater sponges |
|
|
Term
| a multicellular animal breaks into two or more parts with each fragment capable of becoming a new complete individual, example? |
|
Definition
| fragmentation, seastar-sponges-anemones |
|
|
Term
| the production of offspring by the union of gametes form two genetically different parents |
|
Definition
|
|
Term
| offspring in sexual reproduction is a complete new _________. |
|
Definition
|
|
Term
|
Definition
| stored yolk to sustain early development |
|
|
Term
| combines two ________ gametes to restore the normal(________) chromosomal number of the species |
|
Definition
| fertilization; haploid, diploid |
|
|
Term
| organs that produce germ cells |
|
Definition
|
|
Term
| 3 ways of sexual reproduction |
|
Definition
| bisexual, parthenogenesis, hermaphroditism |
|
|
Term
| the common method of sexual reproduction involving separate male and female individuals.....examples? |
|
Definition
| bisexual reproduction; nearly all vertebrates |
|
|
Term
| the development of an embryo from an unfertilized egg, lacks genetic variability....examples? |
|
Definition
| parthenogenesis; flatworms, lizards, fish, insects |
|
|
Term
| animals with both male and female organs...examples? |
|
Definition
| hermaphroditism; earthworms, flatworms |
|
|
Term
| regions of DNA that code for our hereditary characteristics; codes for proteins or polypeptides |
|
Definition
|
|
Term
| different versions of a gene |
|
Definition
|
|
Term
| when does crossing over occur? |
|
Definition
|
|
Term
| when does independent assortment occur and what leads up to this being able to take place? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
these cells:
replace old dead skin cells |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| add roots and shoots from plant cuttings |
|
Definition
|
|
Term
| when a piece of a chromosome breaks off causing info to be lost |
|
Definition
|
|
Term
| when a piece of a chromosome breaks from a chromosome and reattaches itself to a nonhomlogous (different) chromosome |
|
Definition
|
|
Term
| when a piece of a chromosome pair fails to separate during cell division and causes one daughter cell to have an extra chromosome or one ot be short one or two |
|
Definition
|
|
Term
|
Definition
|
|
Term
| missing one x or y chromosome |
|
Definition
|
|
Term
| nondisjunction leads to __________ |
|
Definition
|
|
Term
| what is more important: sperm count or sperm age? why? |
|
Definition
| sperm count: although there are millions of sperm, most die on the way to the ovum and over 40% are usually deformed |
|
|
Term
| How does the number of chromosomes in the daughter cells compare to those of the parent in meiosis? mitosis? |
|
Definition
| meiosis- it has half the number....mitosis- it has the same |
|
|
Term
| Are the daughter cells genetically identical to each other and the parents cells in meiosis? mitosis? |
|
Definition
| meiosis-they have variations....mitosis, they are the same |
|
|
Term
| how many daughter cells are are produced in mitosis and meiosis? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| what are the matching pairs of chromosomes in a diploid cell called? |
|
Definition
|
|
Term
| cells that are involved in fertilization are.... |
|
Definition
|
|
Term
| at the end of telophase 1 are the cells diploid or haploid? |
|
Definition
|
|
Term
| where are the sister chromatids at the start of meiosis? |
|
Definition
| attached to the chromosome pairs |
|
|
Term
| in meiosis, homologous pairs separate when? |
|
Definition
|
|
