subject
Biology, 29.01.2020 15:59 kvekrcurf

1.)which of the following explains why genetic variation is necessary for evolution to occur in a population ?
-a.) without genetic variation, alleles in population would cross over twice so that the dna would remain the same in population, and evolution would not occur.
-b.)without genetic variation, asexually-reproducing organisms could not mate and their species would die out.
-c.) without genetic variation, dna would stay the same from generation to generation, preventing the process of evolution.
-d.) without genetic variation, mutation would occur, wiping out entire population's before they could evolve.

2.) for the hardy-weinberg principle to be true, 5 conditions must be met. which of the following are not one of these conditions?
-a.) no mutation can occur. -b.) no gene flow can occur. -c.) no genetic drift may occur. or -d.) no random mating can occur.

more questions will be

ansver
Answers: 1

Other questions on the subject: Biology

image
Biology, 22.06.2019 00:20, ayoismeisjjjjuan
6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?
Answers: 1
image
Biology, 22.06.2019 02:30, shemiahking5432
One of the purposes of transcription is to produce a sequence of bases that
Answers: 1
image
Biology, 22.06.2019 09:30, ssuereichard
You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.
Answers: 1
image
Biology, 22.06.2019 16:00, kennettahughley7964
Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!
Answers: 2
You know the right answer?
1.)which of the following explains why genetic variation is necessary for evolution to occur in a po...

Questions in other subjects:

Konu
History, 02.09.2021 23:30