BIOS1002 Study Guide - Midterm Guide: Sled Dog, Police Dog, Dog Park

39 views1 pages

harlequintermite414

8 Dec 2021

School

Nottingham, UN

Department

Biosciences

Course

BIOS1002

Professor

For unlimited access to Study Guides, a Grade+ subscription is required.

1. What if dogs were racist? Would they care about fur color…..

“son, only play with other tan dogs”? Or maybe it would depend

on breed, “honey, only play with other German Shepards, never

poodles”. Better yet it could depend on occupation. “I’m a sled

dog while you’re only a running companion, leave me alone”.

Maybe the neighborhood they live in could be the way they

choose which dogs to associate with and which to shun? Size

could be the determining factor, “see how tall that dog is, they are

probably dumb”. Luckily dogs don’t discriminate. Just watch at a

dog park. Big black and white dogs wag their tails and play with

tiny tan dogs. A service dog chases after the same ball as the off-

duty police dog. So if dogs don’t discriminate then why do we?

2. His parents continued to question him. He didn't know what to say

to them since they refused to believe the truth. He explained

again and again, and they dismissed his explanation as a figment

of his imagination. There was no way that grandpa, who had been

dead for five years, could have told him where the treasure had

been hidden. Of course, it didn't help that grandpa was roaring

with laughter in the chair next to him as he tried to explain once

again how he'd found it.

3. Wandering down the path to the pond had become a daily routine.

Even when the weather wasn't cooperating like today with the

wind and rain, Jerry still took the morning stroll down the path until

he reached the pond. Although there didn't seem to be

Unlock document

This preview shows half of the first page of the document.
Unlock all 1 pages and 3 million more documents.

Already have an account? Log in

Document Summary

Or maybe it would depend on breed, honey, only play with other german shepards, never poodles . I"m a sled dog while you"re only a running companion, leave me alone . Size could be the determining factor, see how tall that dog is, they are probably dumb . Big black and white dogs wag their tails and play with tiny tan dogs. A service dog chases after the same ball as the off- duty police dog. So if dogs don"t discriminate then why do we: his parents continued to question him. He didn"t know what to say to them since they refused to believe the truth. He explained again and again, and they dismissed his explanation as a figment of his imagination. There was no way that grandpa, who had been dead for five years, could have told him where the treasure had been hidden.

Related Questions

1. If an individual has a genotype of Bb, what types of gametes (sperm/egg) could they produce?
A) B
B) b
C) B or b
D) Bb, BB, bb
E) Bb

2. Which of the following statements is true about phenotypic plasticity, i.e., phenotype variation that is the result of genotype by environment interactions?
A. Phenotypic plasticity is only favored when the parental environment is a good predictor of the offspring environment
B. Since the trait expression of a genotype varies across environments, it cannot respond to selection
C. A variable environment is required for phenotypic plasticity to be selected for
D. A single trait can only ever be plastic or non-plastic within a species
E. Phenotypic plasticity can only occur within a single generation, never across generations

3. With large numbers of genes contributing to variation for a phenotypic trait (e.g. height in humans), the population approaches what kind of distribution for that trait?
A. Mendelian
B. Exponential
C. Binomial
D. Normal
E. Continuous

4. A classic example of phenotypic plasticity is caste determination in social insects. Whether a female ant becomes a worker, soldier, or queen is determined by the food she is fed. Would you say this this an example of G, E, or GxE?

5. In an infinite population, the frequency of the A allele is 0.3 and the frequency of the a allele is 0.7. What is the frequency of heterozygotes?
A. .10
B. .21
C. .30
D. .42
E. .70

6. Blue eyes are a recessive trait caused by an autosomal allele. If there are 180 people with blue eyes in a population of 500 people, what is the frequency of the brown-eye allele? (Assume HWE)
A. .36
B. .40
C. .50
D. .60
E. .64

7. Imagine flower color in diploid roses is determined by a single gene with two alleles, white and red, which are co-dominant so that heterozygotes are pink. Frank is colorblind and can only discriminate between white and colored roses, and knows that his population has 18 white roses and 182 non-white roses. How many of Frankâs roses are pink? (Assume HWE.)
A. 18
B. 21
C. 42
D. 84
âE. 100

8. Imagine flower color in diploid roses is determined by a single gene with two alleles, white and red, which are co-dominant. If Eva's population has 250 white roses, 500 pink roses, and 250 red roses, what is true about this population?

A. It is not in Hardy-Weinberg equilibrium
B. It is under balancing selection
C. It is connected to another population by migration
D. It is in Hardy-Weinberg equilibrium
ââE. White is a recessive lethal

9. 9% of a population is unable to taste the compound PTC, which is a recessive trait. Assuming HWE, if two carriers of the non-tasting allele had a baby what is the probability that it would be unable to taste PTC?
A. 0.09
B. 0.25
C. 0.30
D. 0.50
E. 0.70

10. (Adapted from: Christensen, A. C. (2000). Cats as an aid to teaching genetics. Genetics, 155(3), 999-1004.) ss cats have no white fur, Ss cats generally have <50% white fur, and SS cats generally have >50% white fur (cats who are 100% white are scored as dominant white and can't be scored for piebald spotting). The S allele is incompletely dominant, but variably expressed, so there is a more-or-less continuous gradient of white pigmentation in populations. You and your friends score all non-white cats up for adoption: http://www.adoptapet.com/cat-adoption/search/50/miles/48824 and find there are 160 with >50% white fur, 350 with <50% white fur, and 490 with no white fur. Which of the following statements is definitely true:

A. The population is in Hardy-Weinberg equilibrium
B. The population is not in Hardy-Weinberg equilibrium
C. There is selection acting on the population
D. It is impossible to know if the population is in Hardy-Weinberg equilibrium
E. Fur color is not a heritable trait and therefore cannot evolve

tanbadger837

Question 1

What would be the dimensions of a Punnett square for the cross Hh x hh?

		4 x 4
		2 x 2
		2 x 1
		1 x 1

Question 2

In dogs, the gene for fur color has two alleles. The dominant allele (G) codes for grey and the recessive allele (g) codes for black fur. The female dog is heterozygous. The male dog is homozygous recessive. Figure out the phenotypes and genotypes possible in their puppies by using a Punnett Square. (provide answers on one line with commas between - xx, xx, xx, xx)

Genotypes: , ,

Phenotypes: ,

Question 3

The fundamental Mendelian process which involves the separation of alleles located at the same spot on the chromosome would be called ___.

		segregation
		independent assortment
		continuous variation
		discontinuous variation

Question 4

Using the information given on dominant and recessive traits, state the phenotype for each genotype. Purple flowers are dominant to white flowers in pea plants.

-A.B.C.	PP_____________
-A.B.C.	Pp____________
-A.B.C.	pp_______________

A.	purple flowers
B.	purple flowers
C.	white flowers

Question 5

In dogs, the gene for fur color has two alleles. The dominant allele (G) codes for grey and the recessive allele (g) codes for black fur. The female dog has black fur and the male dog is homozygous dominant. Make a Punnett square to determine the chance of getting each genotype and phenotype below.

-A.B.	Probability of GG:
-A.B.	Probability of Gg:
-A.B.	Probability of gg:
-A.B.	Probability of gray fur:
-A.B.	Probability of black fur:

A.	100
B.	0

Question 6

Using the information given on dominant and recessive traits, state the phenotype for each genotype. Round seeds are dominant to wrinkled seeds in pea plants.

-A.B.C.	RR______________
-A.B.C.	Rr _____________
-A.B.C.	rr ____________

A.	round seeds
B.	wrinkled seeds
C.	round seeds

Question 7

Using the information given on dominant and recessive traits, state the phenotype for each genotype. Hairy knuckles are dominant to non-hairy knuckles in humans.

-A.B.C.	HH_____________
-A.B.C.	Hh ___________
-A.B.C.	hh _________________

A.	non-hairy knuckles
B.	hairy knuckles
C.	hairy knuckles

Question 8

An allele is ___.

		one of the bases in DNA
		an alternate form of a gene
		another term for epistasis
		present only in males and is responsible for sex determination

Question 9

In a cross of a round hybrid pea with a true breeding round parent (Rr x RR), what genotypic proportions would be observed in the offspring?

		Half heterozygous, half homozygous dominant
		Half round, half wrinkled
		All heterozygous
		All round

Question 10

What would be the dimensions of a Punnett Square depicting a dihybrid cross?

		1 x 4
		2 x 4
		4 x 4
		2 x 2

1) Usually in animal behaviour we find the pattern that thefemales of a species are choosey about which male they want to matewith, while the males are just trying to mate. There are casesthough where the male of the species is choosier. What do you thinkthe adaptive benefit would be for each of the following scenarios?1) Female seahorses (see Figure 8.4 on page 220) show no preferencefor the males with which they mate, yet researchers found that themales of the species tend to choose larger females; b) In blackwidow spiders, researchers found that the males tend to preferwell-fed females over starving ones; c) Male jungle fowl mate withmore than one partner, and researchers have observed that malejungle fowl enhance the speed with which their sperm travel whenroosters inseminate attractive versus unattractive females.

2) Recognition is considered a critical basis for discriminatorybehaviours in animals. A study showed that host reed warblers(Acrocephalus scirpaceus) of an evicting parasite, the commoncuckoo (Cuculus canorus), avoided the costs of prolonged care forunrelated young by deserting the cuckoo chick before it fledged.Desertion was not based on specific recognition of the parasitebecause hosts accept any chick cross-fostered into their nests.Researchers theorized that reed warblers had evolved a way to avoidhelping a parasite, namely a time limit on parental care for abrood. To test this theory, researchers set up experiments so thatthe period of parental care needed for the young to fledge wasextended beyond normal fledging times. Younger and older chickswere transferred between nests to manipulate the natural period ofcare required. What did the researchers expect as a result if theirtime limit hypothesis was correct? What advantage would the reedwarblers have if they used the time limit hypothesis rather thanlearning what kind of nestling to care for and which ones toreject?

lemonduck925

BIOS1002 Study Guide - Midterm Guide: Sled Dog, Police Dog, Dog Park

Document Summary

Get access

Related textbook solutions

Molecular Cell Biology

Biology: Science for Life with Physiology

Biology

Concepts of Biology

Essentials of Biology

Related Questions