Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

describe Understanding the basics of genetics.
1. Tay-Sachs is a recessive genetic disease in humans. If one parent is homozygous normal and the other is a carrier (heterozygous), what are the chances that their child will have this disease?
A) 0%
B) 25%
C) 50%
D) 75%
E) 100%
2. If an organism shows a recessive phenotype, such as short pea plants, it can be
A) either TT or Tt.
B) either TT or tt
C) only Tt.
D) TT, Tt, or tt
E) only tt.
3. In humans, assume red hair is recessive to dark hair. What are the chances of a dark haired couple having a red-haired child if each had one red-haired parent?
A) 0
B) 25%
C) 50%
D) 75%
E) 100%
4. If the genotype of an organism is YySsTt, then yST would represent
A) the genotype of the offspring.
B) a gamete of that parent organism .
C) a possible phenotype of the offspring.
D) a possible zygote.
E) the P generation.
5. In guinea pigs, B = black, b = brown, S = short hair, s = long hair. A dihybrid reproduces with a dihybrid. The expected results are
A) 9 black long hair, 3 black short hair, 3 brown long hair, one brown short hair.
B) 9 black short hair, 6 black long hair, 3 brown long hair, one black short hair.
C) 9 black short hair, 3 black long hair, 3 brown short hair, one brown long hair.
D) 9 brown short hair, 3 black long hair, 3 brown long hair, one black short hair.
6. Karyotyping can be used to diagnose which of the following genetic disorders?
A) cystic fibrosis
B) Down syndrome
C) neurofibromatosis
D) phenylketonuria
E) hemophilia
7. If a chromosomal segment is turned around 180, the chromosomal mutation is termed a(n)
A) translocation.
B) duplication.
C) deletion.
D) inversion.
E) invertiploid.
8. Which statement is true regarding the Barr body?
A) It is found in the nuclei of males.
B) It is found in the nuclei of females.
C) It is found in the cytoplasm of males.
D) It is found in the cytoplasm of females.
E) It is a condensed inactive Y chromosome.
9. If a person inherits two X chromosomes, this individual will be
A) female.
B) male.
C) colorblind.
D) sterile.
E) a poly-X female.
10. A colorblind (recessive trait) woman will pass the allele to
A) her sons only.
B) her husband.
C) her daughters only.
D) none of her children.
E) all her children

Biology, Academics

  • Category:- Biology
  • Reference No.:- M916694

Have any Question? 


Related Questions in Biology

If human activity or natural activity hurricanes destroys a

If human activity or natural activity (hurricanes) destroys a certain species, what consequence might this have on the environment?

Biology questionanswer following question about purple

Biology Question Answer following question about Purple Loosestrife 1. Describe Purple Loosestrife invasive strategy, for example how does it succeffully outcompete its native counterparts in the community 2. Name some n ...

Why was there such a diversity of species in such a small

Why was there such a diversity of species in such a small area? Could these species have been modified from an ancestral form that arrived on the Galápagos Islands shortly after the islands were formed?

The lac operator binds the lac repressor the dna sequence

The lac operator binds the lac repressor. The DNA sequence of the lac operator shares a characteristic with the DNA sequences of the binding sites of many restriction enzymes. What is this common characteristic?

What is produced by fragmentation of the hyphae into their

What is produced by fragmentation of the hyphae into their component cells?

A 74-year-old woman is transported to a regional burn

A 74-year-old woman is transported to a regional burn center after being rescued from a house fire. Apparently, a space heater was knocked over and an area rug caught fire. The fire quickly spread throughout the house. S ...

Do some research and describe at least one specific example

Do some research and describe at least one specific example where antibiotic overuse has resulted in a negative effect. What was the effect of this overuse? How could this have been prevented? What do you think about ant ...

1 describe the three classes of carcinogens and their sub

1. Describe the three classes of carcinogens and their sub classes; describe the role each plays in the cancer process and give chemical examples. 2. Describe six points in the cancer process where the process can be inh ...

Freckles f and six fingers s are dominant alleles in humans

Freckles (F) and six fingers (S) are dominant alleles in humans and the genes occur on different chromosomes. If an FfSs male and an FfSs female have a WHOLE BUNCH of kids, Here are the expected ratios below. 9: freckles ...

Explain why nbspin psoriasis is an nbspthe cells in the

Explain why  in Psoriasis is an  the cells in the dermis and epidermis thickened. Decreased cell maturation occurs in psoriasis  as a result of? Reference/s  must be provided to make  sure the  information  you are tutor ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro