In chickens Cis dominent to to c.C alters development to produce crooked shert legs end winge Creeper: In the hemozygae condition death oceurs Cmonthe When 2 Ereepers are mated whit genetype Land embryalogical often phenetype will be found dinitially b after Gmonthe among their
Q: 41. The template strand of a gene has the sequence 3'-TCCCATGAG-5', Which of the following would be ...
A: Amino acids are the structural unit of proteins. there are majorly of 20 amino acids which are divid...
Q: The body produces a normal amount of testosterone. However, a particular cell you are studying has a...
A: Answer - B. The cell will make less mRNA in response to testosterone exposure. Explanation - The act...
Q: 53- Which of the following is mis-matched: a- Vistibulospinal tract/ orientation of the head b- Rubr...
A: *The Vestibulospinal tract consists of two tracts that is lateral and medial. *Vestibulospinal tract...
Q: Where are nematocysts located in the Anthozoans (subphylum Anthozoa)?
A: Anthozoa is a subphylum under phylum Cnidaria.It is a class of marine invertebrates which includes s...
Q: How structuralism as a way of approaching texts and practices discuss culture Discuss the connection...
A: Structuralism is a style of knowing about nature and human life that is more concerned in relationsh...
Q: Fill out the concept map. In the middle circle, describe a just law. For the outside circles docenik...
A: We have to name any law and also have two explain the basic four purposes related to it.
Q: 2. Examine the phylogeny below, which is the phylogeny for all extant species from a genus of birds,...
A: Phylogeny for extant species refers to the evolution history of a group of species that are living a...
Q: give a detailed description of the following organelles: a)Nucleus b)Lysosomes c)chloroplasts d)...
A: Introduction: A cell is the smallest unit of life which has a definite structure and a specific func...
Q: Upper motor neuron
A: B. Upper motor neuron
Q: 5. In pea plants, purple flowers (P) are dominant over white flowers (p). Being tall (7) is dominant...
A: Introduction: A dihybrid cross describes a mating experiment between two organisms that are identica...
Q: a Cell SSRNA (viral genome) embrane dsDNA C Viral DNA. nucleus d Host DNA SSRNA e Hnct utnniaemir
A: Retrovirus enter their host cell and undergo process called reverse transcription . It is the format...
Q: Suppose a mutation occurs in a cell such that normal Okazaki fragments were created during DNA repli...
A: DNA helicase, is an enzyme that separate double-stranded DNA into single strands allowing each stran...
Q: 21. The binding of aspartate to different subunits of ATPase is an example of a. Negative cooperativ...
A: The activity of allosteric proteins/enzymes is explained by two prominent models. Monod, Wyman, and ...
Q: 45. Refer to the drawings in Figure 13.2 of a single pair of homologous chromosomes as they might ap...
A: In prophase I of meiosis, homologous chromosomes start pairing and cause the formation of synapses. ...
Q: (i) The phenomenon by which living or dead plant cells absorb water by surface attraction. (ii) The ...
A: Urinary system- includes pairs of kidneys, ureters, and urinary bladder. The kidney produces renin t...
Q: Basophils
A: Blood contain two parts- 1.Plasma(55%) 2.Formed elements(45%) Formed elements contains 3 types of el...
Q: In a paternity case a single mother claimed that a certain man was the father of her baby. The man d...
A: Co-dominant alleles define a person's blood type. An allele is among types of genetic data found in ...
Q: Kinesiology: What is the name of the technique of pushing both sides of the body or limb toward the ...
A: "Regular exercise" can benefit our performance and lower our chance of acquiring diseases such as ty...
Q: 1 pt Structures as different as human arms, bat wings, and dolphin flippers contain many of the same...
A: INTRODUCTION Homologous structure The homologous structures are similar in construction but are modi...
Q: 20. In mitosis, if a parent cell has 25 chromosomes, each daughter cell will have hOW a. 100 total f...
A: Cell cycle and mitosis The cell cycle has three phases, they are Interphase Mitosis Cytokinesis ...
Q: What are the 5 major groups of the kingdom Fungi? What characteristics distinguish the groups from o...
A: Introduction: Fungi are achlorophyllous, heterotrophic, spore-forming, non-vascular, eucaryotic orga...
Q: Explain and list down the protocols in doing or preparation of materials for polymerase chain reacti...
A: Polymerase chain reaction It is a technique that take specific sequence of DNA of small amount and ...
Q: A eukaryotic gene is added to a mixture containing a restriction enzyme EcoRI and a bacterial plasmi...
A: The restriction endonuclease is the enzymes that help in the deduction of the DNA from a specific se...
Q: (a) Name the following : (1) The phenomenon by which living or dead plant cells absorb water by surf...
A: A cell is the smallest unit of life. It is divided into two types: prokaryotic and eukaryotic. A cel...
Q: What is/are the sensory structure/s present in jellyfish? What is/are it/they for
A:
Q: 36- he reflex that uses all its five component it is called: A. Short-loop reflex C. Long-loop refle...
A: A reflex is an automatic or involuntary movement that occurs in response to an alteration in the env...
Q: 45- Which of the following is not considered as lower motor neuron: a- Gamma neuron C- Golgi tendon ...
A: Introduction:- Motor neurones are cells in the brain and spinal cord that transfer orders from the b...
Q: Examples of biotic factors inculde
A: Ecosystem is made up of biotic and abiotic factors.
Q: Priming for virus DNA replication can happen by all of the following EXCEPT: O a. Primase adding a R...
A: Primer is a short nucleic acid, that is a starting point for DNA synthesis.
Q: n EMPEROR-Reduced study in jardiance, _______ treated patients with HFrEF were 65 years of age and o...
A: Heart failure with reduced ejection fraction (HFrEF) is a systolic heart failure caused by impaired ...
Q: 2. An experiment was conducted to explore the effects of fatigue on the performance of a simple manu...
A: a) u0 (mu): For the population of all college male students, it is the population mean of the differ...
Q: Meat is composed primarily of protein and fat. Which statement is false? meat does not contain fiber...
A: Meat contains high protein value along with vitamin B complex and an adequate amount of iron and zin...
Q: Question 2 of 10 Question 2. In the presence of low levels of GTP, microtubules inside a cell will u...
A: Microtubules are found in eukaryotic cells. These are major components of cytoskeleton.
Q: The role of ATP synthase is and it is located in O split glucose; cytosol of cells O shuttle pyruvat...
A: ATP synthase is an enzyme present in mitochondrial inner membrane. It catalyses the convertion of AT...
Q: The allele for red Reather color in pigeens b this is dominant to the allele fer brrown fealthers, b...
A: Alleles are the alternative forms of a gene present on same locus on homologous chromosomes. If any...
Q: explain the two major stages of photosynthesis (light dependent and independent reactions).
A: There are two major stages of photosynthesis, The light reaction The dark reaction. The light rea...
Q: why is a cell unable to respond to epinephrine signaling
A: * common goal of signalling pathways is to to produce cellular response, a signal is released by the...
Q: Prokaryotes undergo. replication O A. bifunctional O B. unidirectional O C. tridirectional O D. two-...
A: The correct option is D.two way From the replication origin, DNA replication is bidirectional. Unwin...
Q: 5. Using the hip joint reaction force example we did in class, if the moment arm for the cane is 30 ...
A: Our body's bones offer support for their mobility. A joint is a location where two or more bones com...
Q: Establish the similarities and differences among the following organisms (page 218) STRUCTURAL STRUC...
A: STRUCTURAL SIMILIRATIES WITH OTHER ORGANISMS Structural Uniquness Development Pattern DNA ...
Q: 41- Gamma motor neurons: a- Causes contraction of the equatorial region of an intrafusal fiber b- Ar...
A: The mechanism of gamma motor neurons helps in regulating muscle length and tone.
Q: (a) Name the following : (i) The type of cell division which occurs in the cells of the reproductive...
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...
Q: A person traveled to Asia and is having trouble with jet lag. What would be the best way to get used...
A: Answer Jet lag, also known as jet lag disorder, is a transitory sleep issue that can affect anybody ...
Q: In rabbits, the length of the tail is governed by 3 sets of additive genes A B and C. The longest ta...
A: Given that, the tail length is governed by 3 sets of additive genes means total of 6 additive allele...
Q: Which of these characteristics is NOT shared by bacteria and archaea?
A: The above given statement is about bacteria and archae.
Q: Record the genotypes for pea plants with the following descriptions: A. A plant with yellow pods: B....
A: Genes determine traits such as color, shape, height, and each gene is governed by two alleles, each ...
Q: In corn, kernel color is governed by a dominant allele for white color (A) and by a recessive allele...
A: Given data: Frequency of heterozygous genotypes? Total kernels= 152 Tatal white kernels (homozygous...
Q: 21. The binding of aspartate to different subunits of ATPase is an example of a. Negative cooperativ...
A: Introduction :- A homotropic allosteric modulator is both a substrate and a regulatory molecule for ...
Q: D E -E ET
A: Rats share many common similarities with humans and they both are mammals. This is the reason most o...
Q: Question 4. In an axon, where all of the microtubules are oriented with their minus end facing the c...
A: Neurons have a typical structure with a long cylindrical projection called axon that helps in transm...
Step by step
Solved in 4 steps
- Effect of Paternal Grandmother's Food Supply on Infant Mortality Widely available historical data on periods of famine show that before the industrial revolution, a failed harvest in one autumn often led to severe food shortages the following winter. Retrospective studies have correlated infant mortality with the abundance or food during a grandparent's child hood. FIGURE 10.11 shows results from one or these studies. FIGURE 10.11 Relative risk of early death of female child, correlated with the age at which her paternal grandmother experienced a winter with a food supply, that was scarce (blue) or abundant (red) during childhood. The dotted line represents no difference in risk of mortality. A value above the line means increased risk; one below the line indicates reduced risk. Compare the mortality risk of girls whose paternal grandmothers ate well at age 2 with girls whose grandmothers experienced famine at the same age. Which girl was more likely to die early? How much more likely was she to die?Effect of Paternal Grandmother's Food Supply on Infant Mortality Widely available historical data on periods of famine show that before the industrial revolution, a failed harvest in one autumn often led to severe food shortages the following winter. Retrospective studies have correlated infant mortality with the abundance or food during a grandparent's child hood. FIGURE 10.11 shows results from one or these studies. FIGURE 10.11 Relative risk of early death of female child, correlated with the age at which her paternal grandmother experienced a winter with a food supply, that was scarce (blue) or abundant (red) during childhood. The dotted line represents no difference in risk of mortality. A value above the line means increased risk; one below the line indicates reduced risk. There was no correlation between early death of a male child and eating habits of his paternal grandmother, but there was a strong correlation with the eating habits of his paternal grandfather. What does this tell you about the location of epigenetic changes that gave rise to these data?A wild population of pea plants has two alleles for flower color in its gene pool. A dominant allele (P) specifies purple flowers; a recessive allele (p) specifies white flowers. If the die frequency of allele P is 0.75, what is the expected frequency of allele p?
- The probability of a crossover occurring between two genes on the same chromosome ________. a. is unrelated to the distance between them b. decreases with increasing distance between them c. Increases with the distance between themStuck Sperm Cells lining the epididymis secrete a glycoprotein (beta-defensin) that coats sperm and facilitates their passage through cervical mucus. There are two common alleles for human beta-defensin: a wild-type allele (wt) and an allele with a deletion (del). To find out if this genetic variation could affect fertility, Gary Cherr and his colleagues tested the ability of sperm from men with different genotypes to pass through a gel barrier. The barrier was designed to simulate cenrical mucus. The researchers placed sperm on one side of the gel, then used a video camera to record how many passed into the gel over time. FIGURE 41.12 illustrates their results. FIGURE 41.12 Effect of beta defensin genotype on the ability of sperm to penetrate a gel that simulates cervical mucus. Sperm from 16 men was tested: 4wt/wt, 6wt/del, and 6 del/del. Fresh sperm were placed on one side of the gel, and a video camera was focused on a region 2.75 mm into the gel. The number of sperm in this region was recorded at one-minute intervals for six minutes. Sperm numbers shown are averages. Bars indicate range. After four minutes, how many sperm from men with a wild-type allele were in the camera's view an average?A mutated allele responsible for Marfan syndrome (Section 13.5) is inherited in an autosomal dominant pattern. What is the chance that any child will inherit it if one parent does not carry the allele and the other is heterozygous for it?
- In sweet pea plants, an allele for purple flowers. (P) is dominanl when paired with a recessive allele for red flowers (p). An allele for Jang pollen grains (L) is dominant when paired with a recessive allele for round pollen grains (L). Bateson and Punnett crossed a plant having purple flowers and long pollen grains with one having white flowers and round pollen grains. All F1 offspring have purple flowers and long pollen grains. Among the F2 generation, the researchers observed the following phenotypes: 296 purple flowers/long pollen grains 19 purple /lower/ round pollen grains 27 red flowers/long pollen grains 85 red flowers/round pollen grains What is the best explanation for these results?Analysis of Autosomal Recessive and Dominant Traits Huntington disease is a rare, fatal disease that usually develops in the fourth or fifth decade of life. It is caused by a single autosomal dominant allele. A phenotypically normal man in his twenties who has a 2-year-old son of his own learns that his father has developed Huntington disease. What is the probability that he himself will develop the disease? What is the chance that his young son will eventually develop the disease?BPA and Abnormal Meiosis In 1998, researchers at Case Western University were studying meiosis in mouse oocytes (germ cells) when they saw an unexpected and dramatic increase of abnormal events (FIGURE 12.6). Improper segregation of chromosomes during meiosis is one of the main causes or human genetic disorders. The spike in abnormal meiosis began right after the mouse facility started washing the animals' plastic cages and water bottles in a new, alkaline detergent. The detergent had damaged the plastic, which as a result was leaching bisphenol A (BPA). BPA is a synthetic chemical that mimics estrogen, the main female sex hormone in animals. Though it has since been banned for use in baby bottles, BPA is still widely used to manufacture other plastic items and epoxies (such as the coating on the inside of metal cans of food). BPA-free plastics are often manufactured with a related compound, bisphenol S (BPS), that has effects similar to BPA. FIGURE 12.6 Abnormalities in meiosis that occurred after exposure to BPA. Top, the most abnormal meiosis events occurred in mice that were housed in damaged plastic caging with damaged plastic bottles. Damaged plastic releases BPA. Bottom, fluorescent micrographs show the chromosomes (red) and spindle (green) in nuclei of mouse germ cells in metaphase I. A Normal metaphase; BD abnormal metaphase. What percentage of mouse oocytes displayed abnormalities of meiosis with no exposure to damaged caging?