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yan [13]
3 years ago
14

Punnett square riddle

Biology
1 answer:
Viktor [21]3 years ago
7 0

Answer:100% breaths or 50% 2

Explanation:

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In snapdragons, there is one allele that produces red flowers and another allele that produces white flowers. Neither allele is
AVprozaik [17]
You do:
R R
R
r
Your offspring would be: RR, RR, Rr, Rr
So, about 50% of the offspring will have red flowers
Your answer is
50%
5 0
3 years ago
At the molecular level, gene duplication often produces novelty in a lineage. This process provides another evolutionary pathway
alukav5142 [94]

Answer:

Bridgham et al. (2006) showed that the interaction between a steroid hormone (aldosterone-M) and its receptor (mineralocorticoid) evolved by Darwinian gradualism. In this work, the authors demonstrated  a primitive affinity between the hormone and its receptor that was initially present in chemically similar but more ancient ligands. This result has implications in understanding the association between gene duplication and the evolution of hormone signaling pathways. For example, in invertebrates, this work reinforces the importance of gene duplication in the existing interaction between paralogous glucocorticoid receptors and their receptor mineralocorticoid genes that were derived from duplication (Thornton 2001).

The publications above cited are the following:

J.T. Bridgham, S.M. Carroll, and J.W. Thornton (2006). Evolution of hormone-receptor complexity by molecular exploitation. Science, 312(5770), 97-101.

JW Thornton. Evolution of vertebrate steroid receptors from an ancestral estrogen receptor by ligand exploitation and serial genome expansions, Proc Natl Acad Sci USA (PNAS), 2001, vol. 98 10 (pg. 5671-5676).

6 0
3 years ago
Which organism actively hunts other
Nesterboy [21]

I'm assuming a carnivore as they are animals that only eat meat

5 0
3 years ago
Read 2 more answers
A scientific hypothesis is best defined as
Elza [17]

It is best defined as a "proposed explanation".

6 0
3 years ago
What would happen to the Earth and the moon if gravity did not exist.
Crazy boy [7]

Answer:

If the Earth suddenly had no gravity, the Earth’s atmosphere would float into space. Everything not attached to the Earth would fly off into space. Things like trees and most buildings would remain because they are rooted. Since the Earth, itself, is held together by gravity, it would most probably break apart into chunks and float off.

Explanation:

5 0
3 years ago
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