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Andrews [41]
3 years ago
5

Which of the following statements is false?

Biology
1 answer:
FrozenT [24]3 years ago
3 0

The false answer is: C. Today, most scientists believe instinct is more important than environment in animal behavior.

Both factor contributes to animal behavior.

Ethology is field of behavioral biology which explains that animal behavior is innate, or instinctive. On the other hand, comparative behaviorists believe that animal behavior is largely learned and affected by environment.

Pavlov’s dog experiment proved that dogs can learn to pair their innate potent reflex (salivation when they see food) with neutral stimulus (such as bell ring).


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Ierofanga [76]
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For three traits inherited in a dominant/recessive pattern, what is the probability of an offspring in a trihybrid cross between
AleksandrR [38]

Answer: For three traits inherited in a dominant/recessive pattern, the probability of an offspring in a trihybrid cross between parents heterozygous for all three traits to be recessive at exactly two of the three loci is 23/64.

Explanation: Let A, B and C represent the dominant alleles and a, b and c represent the recessive alleles. The genotype of each of the parent will be AaBbCc since it has been said to be heterozygous for all the three traits. There are eight (8) possible different types of gametes from each of the genotype. This can be calculated using 2^n where n is the number of heterozygous loci.

The number of heterozygous loci in the genotype AaBbCc is three (3). 2^3 = 8. The gametes are;

ABC

ABc

AbC

Abc

aBC

aBc

abC and

abc.

Therefore, sixty-four possible offsprings are expected from the cross AaBbCc x AaBbCc.

Out of these offsprings, twenty-three (23) are expected to be heterozygous at two loci as boldly shown in the attached image.

8 0
3 years ago
What was the first vitamin to be discovered scientifically
Deffense [45]
Vitaim b1. was the found  in 1910 
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Which one of the following viruses is an RNA virus?
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5 0
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1
WITCHER [35]

Answer:

protons is 7  neutrons should be 9

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8 0
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