what is the difference between selective and cross breeding?
394863
SELECTIVE BREEDING INVOLVES CHOOSING PARENTS WITH PATICULAR CHARACTERISTICS TO BREED TOGETHER AND PRODUCE OFFSPRING WITH MORE DESIRABLE CHARACTERS . ... CROSS BREEDING INVOLVES TWO DIFFERENT BREEDS FROM THE SAME SPECIES TO CREATE A NEW BREED ..
816782
However, a fly that has a normal body color may have the homozygous genotype EE or the heterozygous genotype Ee. ... In its simplest form, a test cross is an experimental cross of an individual organism of dominant phenotype but unknown genotype and an organism with a homozygous recessive genotype (and phenotype).
847912
Artificial selection is choosing only certain plants that have desirable traits to reproduce. ... Transgenic methods involve actually adding new genes, or genes from different plants/animals/bacteria into a crop. It requires much more than just selective breeding.
744106
Inbreeding can lead to a reduced gene pool, making it more difficult to produce new varieties in the future. This also makes organisms prone to certain diseases or inherited defects. Benefits of selective breeding include: new varieties may be economically important, by producing more or better quality food.
1354060
Natural selection selects those genetic mutations that make the organism most suited to its environment and therefore more likely to survive and reproduce. In this way, animals of the same species who end up in different environments can evolve in completely different ways.
526481
Conventional breeding relies on mixing characteristics from different populations within a species and then selecting from a plants natural complement of genetic elements. However genetic engineering relies on inserting genetic elements, and they end up in random locations, which can disrupt complex gene interactions.
258536
As adjectives the difference between selective and elective is that selective is of or pertaining to the process of selection while elective is of, or pertaining to voting or elections.
1323451
For closely related species (such as horse x donkey), healthy offspring are often possible but sterile. In other cases, however, reproductive isolation is more malleable. ... In other species, the barriers to interbreeding can be even less substantial.
792585
Plant breeding. ... Classical plant breeding uses deliberate interbreeding (crossing) of closely or distantly related individuals to produce new crop varieties or lines with desirable properties. Plants are crossbred to introduce traits/genes from one variety or line into a new genetic background.
923605
Heterozygous vs. Homozygous — Differences & Similarities. Homozygous means two copies of the same allele, such as two dominant alleles. Heterozygous means one of each type of allele, one dominant and one recessive.
1224705
Interspecific hybrids are bred by mating two species, normally from within the same genus. ... Mules, hinnies, and other normally sterile interspecific hybrids cannot produce viable gametes because the extra chromosome cannot make a homologous pair at meiosis, meiosis is disrupted, and viable sperm and eggs are not formed.
1424329
r-selected babies grow rapidly, and tend to be found in less competitive, low quality environments. ... K-selected species produce offspring that each have a higher probability of survival to maturity.
894802
Key Differences Between Natural and Artificial Selection Natural selection is controlled by nature; the artificial selection is controlled and coordinated by humans only. Natural selection is performed on all the types organisms; Artificial selection is processed on some selective organisms of humans desires.
80441
Artificial selection selects for traits already present in a species, whereas genetic engineering creates new traits. In artificial selection, scientists breed only individuals that have desirable traits. ... Through selective breeding, scientists are able to change the traits in the population. Evolution has occurred.
545571
Organisms that have two different alleles for a gene are called heterozygous (Gg). The offspring of the cross between the GG (homozygous dominant) and gg (homozygous recessive) plants are all heterozygous for the pod color gene.
992539
The key distinction is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success. ... Natural selection is the process by which these adaptive traits become more common in a population.
553002
Ramon Johnson. Updated May 08, 2019. Breeding is a slang term used to describe the process of ejaculating inside another man during bareback anal sex. It's a high-risk activity that greatly increases the chances of transmitting or contracting HIV and other STDs because it does not involve using a condom.